46645921 has 8 divisors (see below), whose sum is σ = 53388224. Its totient is φ = 39923280.

The previous prime is 46645913. The next prime is 46645999. The reversal of 46645921 is 12954664.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 46645921 - 2³ = 46645913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46645721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586 + ... + 9676.

It is an arithmetic number, because the mean of its divisors is an integer number (6673528).

Almost surely, 2^46645921 is an apocalyptic number.

It is an amenable number.

46645921 is a deficient number, since it is larger than the sum of its proper divisors (6742303).

46645921 is an equidigital number, since it uses as much as digits as its factorization.

46645921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831.

The product of its digits is 51840, while the sum is 37.

The square root of 46645921 is about 6829.7819145270. The cubic root of 46645921 is about 359.9740747791.

It can be divided in two parts, 4664 and 5921, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 46645921 in words is "forty-six million, six hundred forty-five thousand, nine hundred twenty-one".