68904304 has 40 divisors (see below), whose sum is σ = 153193568. Its totient is φ = 29410560.

The previous prime is 68904301. The next prime is 68904307. The reversal of 68904304 is 40340986.

It is an interprime number because it is at equal distance from previous prime (68904301) and next prime (68904307).

It is a self number, because there is not a number n which added to its sum of digits gives 68904304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68904301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29914 + ... + 32134.

Almost surely, 2^68904304 is an apocalyptic number.

It is an amenable number.

68904304 is an abundant number, since it is smaller than the sum of its proper divisors (84289264).

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

68904304 is a wasteful number, since it uses less digits than its factorization.

68904304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2507 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 68904304 is about 8300.8616420225. The cubic root of 68904304 is about 409.9668900488.

The spelling of 68904304 in words is "sixty-eight million, nine hundred four thousand, three hundred four".