46861645 has 4 divisors (see below), whose sum is σ = 56233980. Its totient is φ = 37489312.

The previous prime is 46861643. The next prime is 46861669. The reversal of 46861645 is 54616864.

It is a happy number.

46861645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22071204 + 24790441 = 4698^2 + 4979^2 .

It is a cyclic number.

It is not a de Polignac number, because 46861645 - 2¹ = 46861643 is a prime.

It is a super-3 number, since 3×46861645³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 46861598 and 46861607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46861643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4686160 + ... + 4686169.

It is an arithmetic number, because the mean of its divisors is an integer number (14058495).

Almost surely, 2^46861645 is an apocalyptic number.

It is an amenable number.

46861645 is a deficient number, since it is larger than the sum of its proper divisors (9372335).

46861645 is an equidigital number, since it uses as much as digits as its factorization.

46861645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9372334.

The product of its digits is 138240, while the sum is 40.

The square root of 46861645 is about 6845.5565880358. The cubic root of 46861645 is about 360.5281471146.

The spelling of 46861645 in words is "forty-six million, eight hundred sixty-one thousand, six hundred forty-five".