64913004 has 144 divisors (see below), whose sum is σ = 192628800. Its totient is φ = 18247680.

The previous prime is 64912999. The next prime is 64913033. The reversal of 64913004 is 40031946.

64913004 is a `hidden beast` number, since 649 + 13 + 0 + 0 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 326097 + ... + 326295.

It is an arithmetic number, because the mean of its divisors is an integer number (1337700).

Almost surely, 2^64913004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64913004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96314400).

64913004 is an abundant number, since it is smaller than the sum of its proper divisors (127715796).

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

64913004 is a wasteful number, since it uses less digits than its factorization.

64913004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 64913004 is about 8056.8606789493. The cubic root of 64913004 is about 401.8931177943.

The spelling of 64913004 in words is "sixty-four million, nine hundred thirteen thousand, four".