78634792 has 48 divisors (see below), whose sum is σ = 163345140. Its totient is φ = 35363328.

The previous prime is 78634763. The next prime is 78634811. The reversal of 78634792 is 29743687.

It can be written as a sum of positive squares in 2 ways, for example, as 61873956 + 16760836 = 7866^2 + 4094^2 .

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 71398 + ... + 72490.

Almost surely, 2^78634792 is an apocalyptic number.

It is an amenable number.

78634792 is an abundant number, since it is smaller than the sum of its proper divisors (84710348).

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

78634792 is a wasteful number, since it uses less digits than its factorization.

78634792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1135 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 78634792 is about 8867.6260633836. The cubic root of 78634792 is about 428.4218189748.

The spelling of 78634792 in words is "seventy-eight million, six hundred thirty-four thousand, seven hundred ninety-two".