78809068 has 24 divisors (see below), whose sum is σ = 153319040. Its totient is φ = 35199360.

The previous prime is 78809051. The next prime is 78809123. The reversal of 78809068 is 86090887.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22833 + ... + 26056.

Almost surely, 2^78809068 is an apocalyptic number.

It is an amenable number.

78809068 is a deficient number, since it is larger than the sum of its proper divisors (74509972).

78809068 is a wasteful number, since it uses less digits than its factorization.

78809068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48937 (or 48935 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 78809068 is about 8877.4471555735. The cubic root of 78809068 is about 428.7380850471.

The spelling of 78809068 in words is "seventy-eight million, eight hundred nine thousand, sixty-eight".