68904504 has 48 divisors (see below), whose sum is σ = 194734800. Its totient is φ = 21969024.

The previous prime is 68904503. The next prime is 68904529. The reversal of 68904504 is 40540986.

68904504 is a `hidden beast` number, since 68 + 90 + 4 + 504 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68904503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19149 + ... + 22460.

It is an arithmetic number, because the mean of its divisors is an integer number (4056975).

Almost surely, 2^68904504 is an apocalyptic number.

It is an amenable number.

68904504 is an abundant number, since it is smaller than the sum of its proper divisors (125830296).

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

68904504 is a wasteful number, since it uses less digits than its factorization.

68904504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41644 (or 41637 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 68904504 is about 8300.8736889559. The cubic root of 68904504 is about 409.9672867018.

The spelling of 68904504 in words is "sixty-eight million, nine hundred four thousand, five hundred four".