64626772 has 12 divisors (see below), whose sum is σ = 129253600. Its totient is φ = 27697176.

The previous prime is 64626767. The next prime is 64626781. The reversal of 64626772 is 27762646.

It is a happy number.

64626772 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 1154022 + ... + 1154077.

Almost surely, 2^64626772 is an apocalyptic number.

It is an amenable number.

64626772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64626772 is a wasteful number, since it uses less digits than its factorization.

64626772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308110 (or 2308108 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 64626772 is about 8039.0778078086. The cubic root of 64626772 is about 401.3015354206.

The spelling of 64626772 in words is "sixty-four million, six hundred twenty-six thousand, seven hundred seventy-two".