68566804 has 6 divisors (see below), whose sum is σ = 119991914. Its totient is φ = 34283400.

The previous prime is 68566793. The next prime is 68566807. The reversal of 68566804 is 40866586.

It can be written as a sum of positive squares in only one way, i.e., 53728900 + 14837904 = 7330^2 + 3852^2 .

It is a super-2 number, since 2×68566804² = 9402813221548832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68566807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8570847 + ... + 8570854.

Almost surely, 2^68566804 is an apocalyptic number.

It is an amenable number.

68566804 is a deficient number, since it is larger than the sum of its proper divisors (51425110).

68566804 is a wasteful number, since it uses less digits than its factorization.

68566804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17141705 (or 17141703 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 68566804 is about 8280.5074723715. The cubic root of 68566804 is about 409.2964416124.

The spelling of 68566804 in words is "sixty-eight million, five hundred sixty-six thousand, eight hundred four".