78934674 has 32 divisors (see below), whose sum is σ = 194302080. Its totient is φ = 20817792.

The previous prime is 78934657. The next prime is 78934693. The reversal of 78934674 is 47643987.

It is a happy 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, 71739 + ... + 72830.

It is an arithmetic number, because the mean of its divisors is an integer number (6071940).

Almost surely, 2^78934674 is an apocalyptic number.

78934674 is an abundant number, since it is smaller than the sum of its proper divisors (115367406).

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

78934674 is a wasteful number, since it uses less digits than its factorization.

78934674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144594.

The product of its digits is 1016064, while the sum is 48.

The square root of 78934674 is about 8884.5187826916. The cubic root of 78934674 is about 428.9657385932.

The spelling of 78934674 in words is "seventy-eight million, nine hundred thirty-four thousand, six hundred seventy-four".