79231236 has 72 divisors (see below), whose sum is σ = 216953856. Its totient is φ = 22438080.

The previous prime is 79231223. The next prime is 79231247. The reversal of 79231236 is 63213297.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 79231197 and 79231206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74146 + ... + 75206.

It is an arithmetic number, because the mean of its divisors is an integer number (3013248).

Almost surely, 2^79231236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79231236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108476928).

79231236 is an abundant number, since it is smaller than the sum of its proper divisors (137722620).

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

79231236 is a wasteful number, since it uses less digits than its factorization.

79231236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209 (or 1200 counting only the distinct ones).

The product of its digits is 13608, while the sum is 33.

The square root of 79231236 is about 8901.1929537563. The cubic root of 79231236 is about 429.5022833280.

The spelling of 79231236 in words is "seventy-nine million, two hundred thirty-one thousand, two hundred thirty-six".