64317428 has 12 divisors (see below), whose sum is σ = 128634912. Its totient is φ = 27564600.

The previous prime is 64317419. The next prime is 64317469. The reversal of 64317428 is 82471346.

64317428 is an admirable number.

It is a hoax number, since the sum of its digits (35) 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148498 + ... + 1148553.

It is an arithmetic number, because the mean of its divisors is an integer number (10719576).

Almost surely, 2^64317428 is an apocalyptic number.

It is an amenable number.

64317428 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.

64317428 is a wasteful number, since it uses less digits than its factorization.

64317428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297062 (or 2297060 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 64317428 is about 8019.8147110766. The cubic root of 64317428 is about 400.6602180142.

The spelling of 64317428 in words is "sixty-four million, three hundred seventeen thousand, four hundred twenty-eight".