68917564 has 12 divisors (see below), whose sum is σ = 120671824. Its totient is φ = 34439904.

The previous prime is 68917559. The next prime is 68917567. The reversal of 68917564 is 46571986.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68917567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6409 + ... + 13375.

Almost surely, 2^68917564 is an apocalyptic number.

It is an amenable number.

68917564 is a deficient number, since it is larger than the sum of its proper divisors (51754260).

68917564 is a wasteful number, since it uses less digits than its factorization.

68917564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444 (or 9442 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 68917564 is about 8301.6603158645. The cubic root of 68917564 is about 409.9931864821.

The spelling of 68917564 in words is "sixty-eight million, nine hundred seventeen thousand, five hundred sixty-four".