78870974 has 16 divisors (see below), whose sum is σ = 145608288. Its totient is φ = 31201632.

The previous prime is 78870941. The next prime is 78870997. The reversal of 78870974 is 47907887.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216497 + ... + 216860.

It is an arithmetic number, because the mean of its divisors is an integer number (9100518).

Almost surely, 2^78870974 is an apocalyptic number.

78870974 is a deficient number, since it is larger than the sum of its proper divisors (66737314).

78870974 is a wasteful number, since it uses less digits than its factorization.

78870974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433379.

The product of its (nonzero) digits is 790272, while the sum is 50.

The square root of 78870974 is about 8880.9331716887. The cubic root of 78870974 is about 428.8503162662.

The spelling of 78870974 in words is "seventy-eight million, eight hundred seventy thousand, nine hundred seventy-four".