64705464 has 48 divisors (see below), whose sum is σ = 178981920. Its totient is φ = 21108480.

The previous prime is 64705439. The next prime is 64705493. The reversal of 64705464 is 46450746.

64705464 is a `hidden beast` number, since 647 + 0 + 5 + 4 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6177 + ... + 12944.

It is an arithmetic number, because the mean of its divisors is an integer number (3728790).

Almost surely, 2^64705464 is an apocalyptic number.

It is an amenable number.

64705464 is an abundant number, since it is smaller than the sum of its proper divisors (114276456).

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

64705464 is a wasteful number, since it uses less digits than its factorization.

64705464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19180 (or 19173 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 64705464 is about 8043.9706613090. The cubic root of 64705464 is about 401.4643493276.

The spelling of 64705464 in words is "sixty-four million, seven hundred five thousand, four hundred sixty-four".