79798488 has 128 divisors (see below), whose sum is σ = 257472000. Its totient is φ = 19998720.

The previous prime is 79798483. The next prime is 79798507. The reversal of 79798488 is 88489797.

It is a Cunningham number, because it is equal to 8933²-1.

It is a super-2 number, since 2×79798488² = 12735597374172288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79798483) 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, 52848 + ... + 54336.

It is an arithmetic number, because the mean of its divisors is an integer number (2011500).

Almost surely, 2^79798488 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 79798488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128736000).

79798488 is an abundant number, since it is smaller than the sum of its proper divisors (177673512).

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

79798488 is a wasteful number, since it uses less digits than its factorization.

79798488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1541 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 60.

The square root of 79798488 is about 8932.9999440278. Note that the first 4 decimals coincide. The cubic root of 79798488 is about 430.5248467761.

The spelling of 79798488 in words is "seventy-nine million, seven hundred ninety-eight thousand, four hundred eighty-eight".