79251238 has 16 divisors (see below), whose sum is σ = 135323136. Its totient is φ = 34456840.

The previous prime is 79251217. The next prime is 79251239. The reversal of 79251238 is 83215297.

It is a junction number, because it is equal to n+sod(n) for n = 79251197 and 79251206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79251239) 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 7 ways as a sum of consecutive naturals, for example, 77806 + ... + 78817.

It is an arithmetic number, because the mean of its divisors is an integer number (8457696).

Almost surely, 2^79251238 is an apocalyptic number.

79251238 is a deficient number, since it is larger than the sum of its proper divisors (56071898).

79251238 is a wasteful number, since it uses less digits than its factorization.

79251238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156659.

The product of its digits is 30240, while the sum is 37.

The square root of 79251238 is about 8902.3164401183. The cubic root of 79251238 is about 429.5384230388.

The spelling of 79251238 in words is "seventy-nine million, two hundred fifty-one thousand, two hundred thirty-eight".