79870938 has 64 divisors (see below), whose sum is σ = 189696000. Its totient is φ = 21943872.

The previous prime is 79870933. The next prime is 79870939. The reversal of 79870938 is 83907897.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79870933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159813 + ... + 160311.

It is an arithmetic number, because the mean of its divisors is an integer number (2964000).

Almost surely, 2^79870938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79870938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94848000).

79870938 is an abundant number, since it is smaller than the sum of its proper divisors (109825062).

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

79870938 is a wasteful number, since it uses less digits than its factorization.

79870938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 79870938 is about 8937.0542126587. The cubic root of 79870938 is about 430.6551002473.

It can be divided in two parts, 79870 and 938, that added together give a palindrome (80808).

The spelling of 79870938 in words is "seventy-nine million, eight hundred seventy thousand, nine hundred thirty-eight".