64000764 has 18 divisors (see below), whose sum is σ = 161779800. Its totient is φ = 21333576.

The previous prime is 64000757. The next prime is 64000817. The reversal of 64000764 is 46700046.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 888864 + ... + 888935.

Almost surely, 2^64000764 is an apocalyptic number.

It is an amenable number.

64000764 is an abundant number, since it is smaller than the sum of its proper divisors (97779036).

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

64000764 is a wasteful number, since it uses less digits than its factorization.

64000764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777809 (or 1777804 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 64000764 is about 8000.0477498575. The cubic root of 64000764 is about 400.0015916603.

The spelling of 64000764 in words is "sixty-four million, seven hundred sixty-four", and thus it is an aban number.