64395036 has 36 divisors (see below), whose sum is σ = 163154992. Its totient is φ = 21415104.

The previous prime is 64395017. The next prime is 64395043. The reversal of 64395036 is 63059346.

64395036 is a `hidden beast` number, since 643 + 9 + 5 + 0 + 3 + 6 = 666.

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

It is a super-2 number, since 2×64395036² = 8293441322882592, which contains 22 as substring.

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, 15696 + ... + 19368.

Almost surely, 2^64395036 is an apocalyptic number.

It is an amenable number.

64395036 is an abundant number, since it is smaller than the sum of its proper divisors (98759956).

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

64395036 is a wasteful number, since it uses less digits than its factorization.

64395036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170 (or 4165 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 64395036 is about 8024.6517681455. The cubic root of 64395036 is about 400.8213041612.

The spelling of 64395036 in words is "sixty-four million, three hundred ninety-five thousand, thirty-six".