79641798 has 16 divisors (see below), whose sum is σ = 159921216. Its totient is φ = 26441000.

The previous prime is 79641791. The next prime is 79641811. The reversal of 79641798 is 89714697.

It is a self number, because there is not a number n which added to its sum of digits gives 79641798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79641791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24936 + ... + 27947.

It is an arithmetic number, because the mean of its divisors is an integer number (9995076).

Almost surely, 2^79641798 is an apocalyptic number.

79641798 is an abundant number, since it is smaller than the sum of its proper divisors (80279418).

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

79641798 is a wasteful number, since it uses less digits than its factorization.

79641798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53139.

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

The square root of 79641798 is about 8924.2253445327. The cubic root of 79641798 is about 430.2428734303.

The spelling of 79641798 in words is "seventy-nine million, six hundred forty-one thousand, seven hundred ninety-eight".