46872581 has 4 divisors (see below), whose sum is σ = 53568672. Its totient is φ = 40176492.

The previous prime is 46872557. The next prime is 46872611. The reversal of 46872581 is 18527864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46872581 is a prime.

It is a super-2 number, since 2×46872581² = 4394077699203122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46872481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3348035 + ... + 3348048.

It is an arithmetic number, because the mean of its divisors is an integer number (13392168).

Almost surely, 2^46872581 is an apocalyptic number.

It is an amenable number.

46872581 is a deficient number, since it is larger than the sum of its proper divisors (6696091).

46872581 is an equidigital number, since it uses as much as digits as its factorization.

46872581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696090.

The product of its digits is 107520, while the sum is 41.

The square root of 46872581 is about 6846.3553077532. The cubic root of 46872581 is about 360.5561901560.

The spelling of 46872581 in words is "forty-six million, eight hundred seventy-two thousand, five hundred eighty-one".