64757892 has 12 divisors (see below), whose sum is σ = 151101776. Its totient is φ = 21585960.

The previous prime is 64757873. The next prime is 64757897. The reversal of 64757892 is 29875746.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (64757897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2698234 + ... + 2698257.

Almost surely, 2^64757892 is an apocalyptic number.

It is an amenable number.

64757892 is an abundant number, since it is smaller than the sum of its proper divisors (86343884).

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

64757892 is a wasteful number, since it uses less digits than its factorization.

64757892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396498 (or 5396496 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 64757892 is about 8047.2288397932. The cubic root of 64757892 is about 401.5727497078.

The spelling of 64757892 in words is "sixty-four million, seven hundred fifty-seven thousand, eight hundred ninety-two".