78626874 has 16 divisors (see below), whose sum is σ = 157547808. Its totient is φ = 26159952.

The previous prime is 78626861. The next prime is 78626893. The reversal of 78626874 is 47862687.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8697 + ... + 15260.

It is an arithmetic number, because the mean of its divisors is an integer number (9846738).

Almost surely, 2^78626874 is an apocalyptic number.

78626874 is an abundant number, since it is smaller than the sum of its proper divisors (78920934).

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

78626874 is a wasteful number, since it uses less digits than its factorization.

78626874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24509.

The product of its digits is 903168, while the sum is 48.

The square root of 78626874 is about 8867.1795966925. The cubic root of 78626874 is about 428.4074387505.

The spelling of 78626874 in words is "seventy-eight million, six hundred twenty-six thousand, eight hundred seventy-four".