78893900 has 36 divisors (see below), whose sum is σ = 171968160. Its totient is φ = 31416000.

The previous prime is 78893897. The next prime is 78893911. The reversal of 78893900 is 939887.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22250 + ... + 25550.

Almost surely, 2^78893900 is an apocalyptic number.

It is an amenable number.

78893900 is an abundant number, since it is smaller than the sum of its proper divisors (93074260).

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

78893900 is a wasteful number, since it uses less digits than its factorization.

78893900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 78893900 is about 8882.2238206431. The cubic root of 78893900 is about 428.8918645882.

The spelling of 78893900 in words is "seventy-eight million, eight hundred ninety-three thousand, nine hundred".