68809204 has 12 divisors (see below), whose sum is σ = 120666784. Its totient is φ = 34332984.

The previous prime is 68809157. The next prime is 68809219. The reversal of 68809204 is 40290886.

It is a super-2 number, since 2×68809204² = 9469413110227232, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15714 + ... + 19609.

Almost surely, 2^68809204 is an apocalyptic number.

It is an amenable number.

68809204 is a deficient number, since it is larger than the sum of its proper divisors (51857580).

68809204 is a wasteful number, since it uses less digits than its factorization.

68809204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35814 (or 35812 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 68809204 is about 8295.1313431434. The cubic root of 68809204 is about 409.7781945227.

The spelling of 68809204 in words is "sixty-eight million, eight hundred nine thousand, two hundred four".