64785996 has 36 divisors (see below), whose sum is σ = 178653384. Its totient is φ = 19632000.

The previous prime is 64785989. The next prime is 64786013. The reversal of 64785996 is 69958746.

64785996 is a `hidden beast` number, since 6 + 47 + 8 + 599 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (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, 81405 + ... + 82196.

It is an arithmetic number, because the mean of its divisors is an integer number (4962594).

Almost surely, 2^64785996 is an apocalyptic number.

64785996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

64785996 is an abundant number, since it is smaller than the sum of its proper divisors (113867388).

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

64785996 is a wasteful number, since it uses less digits than its factorization.

64785996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163622 (or 163617 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 64785996 is about 8048.9748415559. The cubic root of 64785996 is about 401.6308335850.

The spelling of 64785996 in words is "sixty-four million, seven hundred eighty-five thousand, nine hundred ninety-six".