79812198 has 48 divisors (see below), whose sum is σ = 183783600. Its totient is φ = 24960960.

The previous prime is 79812193. The next prime is 79812247. The reversal of 79812198 is 89121897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79812193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36208 + ... + 38348.

It is an arithmetic number, because the mean of its divisors is an integer number (3828825).

Almost surely, 2^79812198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79812198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91891800).

79812198 is an abundant number, since it is smaller than the sum of its proper divisors (103971402).

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

79812198 is a wasteful number, since it uses less digits than its factorization.

79812198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2274 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 79812198 is about 8933.7672904548. The cubic root of 79812198 is about 430.5495012016.

It can be divided in two parts, 798 and 12198, that added together give a square (12996 = 114²).

The spelling of 79812198 in words is "seventy-nine million, eight hundred twelve thousand, one hundred ninety-eight".