768878904 has 64 divisors (see below), whose sum is σ = 1979873280. Its totient is φ = 248672000.

The previous prime is 768878899. The next prime is 768878911. The reversal of 768878904 is 409878867.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185899 + ... + 189989.

It is an arithmetic number, because the mean of its divisors is an integer number (30935520).

Almost surely, 2^768878904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 768878904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (989936640).

768878904 is an abundant number, since it is smaller than the sum of its proper divisors (1210994376).

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

768878904 is a wasteful number, since it uses less digits than its factorization.

768878904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332 (or 4328 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 57.

The square root of 768878904 is about 27728.6657450372. The cubic root of 768878904 is about 916.1205990347.

The spelling of 768878904 in words is "seven hundred sixty-eight million, eight hundred seventy-eight thousand, nine hundred four".