64472685 has 16 divisors (see below), whose sum is σ = 105945216. Its totient is φ = 33455808.

The previous prime is 64472671. The next prime is 64472701. The reversal of 64472685 is 58627446.

It is not a de Polignac number, because 64472685 - 2⁷ = 64472557 is a prime.

It is a super-2 number, since 2×64472685² = 8313454222218450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57529 + ... + 58638.

It is an arithmetic number, because the mean of its divisors is an integer number (6621576).

Almost surely, 2^64472685 is an apocalyptic number.

It is an amenable number.

64472685 is a deficient number, since it is larger than the sum of its proper divisors (41472531).

64472685 is a wasteful number, since it uses less digits than its factorization.

64472685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116212.

The product of its digits is 322560, while the sum is 42.

The square root of 64472685 is about 8029.4884644042. The cubic root of 64472685 is about 400.9823459329.

The spelling of 64472685 in words is "sixty-four million, four hundred seventy-two thousand, six hundred eighty-five".