78871374 has 32 divisors (see below), whose sum is σ = 179351040. Its totient is φ = 25678296.

The previous prime is 78871363. The next prime is 78871391. The reversal of 78871374 is 47317887.

It is a happy number.

It is a congruent 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, 14662 + ... + 19305.

It is an arithmetic number, because the mean of its divisors is an integer number (5604720).

Almost surely, 2^78871374 is an apocalyptic number.

78871374 is an abundant number, since it is smaller than the sum of its proper divisors (100479666).

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

78871374 is a wasteful number, since it uses less digits than its factorization.

78871374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34021 (or 34015 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 78871374 is about 8880.9556918161. The cubic root of 78871374 is about 428.8510412470.

It can be divided in two parts, 7887 and 1374, that added together give a cube (9261 = 21³).

The spelling of 78871374 in words is "seventy-eight million, eight hundred seventy-one thousand, three hundred seventy-four".