79898564 has 12 divisors (see below), whose sum is σ = 139894188. Its totient is φ = 39928800.

The previous prime is 79898561. The next prime is 79898569. The reversal of 79898564 is 46589897.

It can be written as a sum of positive squares in 2 ways, for example, as 68392900 + 11505664 = 8270^2 + 3392^2 .

It is not an unprimeable number, because it can be changed into a prime (79898561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6674 + ... + 14294.

It is an arithmetic number, because the mean of its divisors is an integer number (11657849).

Almost surely, 2^79898564 is an apocalyptic number.

It is an amenable number.

79898564 is a deficient number, since it is larger than the sum of its proper divisors (59995624).

79898564 is a wasteful number, since it uses less digits than its factorization.

79898564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10246 (or 10244 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 56.

The square root of 79898564 is about 8938.5996666145. The cubic root of 79898564 is about 430.7047466171.

The spelling of 79898564 in words is "seventy-nine million, eight hundred ninety-eight thousand, five hundred sixty-four".