64724364 has 36 divisors (see below), whose sum is σ = 164212776. Its totient is φ = 21495168.

The previous prime is 64724353. The next prime is 64724383. The reversal of 64724364 is 46342746.

64724364 is a `hidden beast` number, since 647 + 2 + 4 + 3 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

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, 7012 + ... + 13364.

It is an arithmetic number, because the mean of its divisors is an integer number (4561466).

Almost surely, 2^64724364 is an apocalyptic number.

It is an amenable number.

64724364 is an abundant number, since it is smaller than the sum of its proper divisors (99488412).

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

64724364 is a wasteful number, since it uses less digits than its factorization.

64724364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6646 (or 6641 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 64724364 is about 8045.1453684815. The cubic root of 64724364 is about 401.5034338040.

The spelling of 64724364 in words is "sixty-four million, seven hundred twenty-four thousand, three hundred sixty-four".