79685892 has 144 divisors (see below), whose sum is σ = 247298688. Its totient is φ = 21288960.

The previous prime is 79685891. The next prime is 79685897. The reversal of 79685892 is 29858697.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (79685891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118068 + ... + 118740.

It is an arithmetic number, because the mean of its divisors is an integer number (1717352).

Almost surely, 2^79685892 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 79685892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123649344).

79685892 is an abundant number, since it is smaller than the sum of its proper divisors (167612796).

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

79685892 is a wasteful number, since it uses less digits than its factorization.

79685892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 725 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 79685892 is about 8926.6954692092. The cubic root of 79685892 is about 430.3222606770.

The spelling of 79685892 in words is "seventy-nine million, six hundred eighty-five thousand, eight hundred ninety-two".