68036864 has 36 divisors (see below), whose sum is σ = 155213184. Its totient is φ = 29157888.

The previous prime is 68036849. The next prime is 68036887. The reversal of 68036864 is 46863086.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17192 + ... + 20775.

Almost surely, 2^68036864 is an apocalyptic number.

68036864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68036864 is an abundant number, since it is smaller than the sum of its proper divisors (87176320).

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

68036864 is an equidigital number, since it uses as much as digits as its factorization.

68036864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37990 (or 37976 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 68036864 is about 8248.4461567013. The cubic root of 68036864 is about 408.2392547759.

Subtracting from 68036864 its reverse (46863086), we obtain a triangular number (21173778 = T₆₅₀₇).

The spelling of 68036864 in words is "sixty-eight million, thirty-six thousand, eight hundred sixty-four".