79487278 has 16 divisors (see below), whose sum is σ = 130581360. Its totient is φ = 36063936.

The previous prime is 79487237. The next prime is 79487297. The reversal of 79487278 is 87278497.

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 7 ways as a sum of consecutive naturals, for example, 24375 + ... + 27442.

It is an arithmetic number, because the mean of its divisors is an integer number (8161335).

Almost surely, 2^79487278 is an apocalyptic number.

79487278 is a deficient number, since it is larger than the sum of its proper divisors (51094082).

79487278 is a wasteful number, since it uses less digits than its factorization.

79487278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51891.

The product of its digits is 1580544, while the sum is 52.

The square root of 79487278 is about 8915.5638071857. The cubic root of 79487278 is about 429.9644427061.

The spelling of 79487278 in words is "seventy-nine million, four hundred eighty-seven thousand, two hundred seventy-eight".