79372878 has 24 divisors (see below), whose sum is σ = 171898488. Its totient is φ = 24422112.

The previous prime is 79372871. The next prime is 79372901. The reversal of 79372878 is 87827397.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79372878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79372871) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 38125 + ... + 40152.

It is an arithmetic number, because the mean of its divisors is an integer number (7162437).

Almost surely, 2^79372878 is an apocalyptic number.

79372878 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

79372878 is an abundant number, since it is smaller than the sum of its proper divisors (92525610).

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

79372878 is a wasteful number, since it uses less digits than its factorization.

79372878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78308 (or 78295 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 51.

The square root of 79372878 is about 8909.1457502950. The cubic root of 79372878 is about 429.7580719515.

The spelling of 79372878 in words is "seventy-nine million, three hundred seventy-two thousand, eight hundred seventy-eight".