64895004 has 36 divisors (see below), whose sum is σ = 164291400. Its totient is φ = 21598560.

The previous prime is 64894993. The next prime is 64895021. The reversal of 64895004 is 40059846.

64895004 is a `hidden beast` number, since 648 + 9 + 5 + 0 + 0 + 4 = 666.

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

It is a super-2 number, since 2×64895004² = 8422723088320032, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64895004.

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, 37347 + ... + 39045.

It is an arithmetic number, because the mean of its divisors is an integer number (4563650).

Almost surely, 2^64895004 is an apocalyptic number.

It is an amenable number.

64895004 is an abundant number, since it is smaller than the sum of its proper divisors (99396396).

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

64895004 is a wasteful number, since it uses less digits than its factorization.

64895004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 64895004 is about 8055.7435411016. The cubic root of 64895004 is about 401.8559668157.

The spelling of 64895004 in words is "sixty-four million, eight hundred ninety-five thousand, four".