79800198 has 16 divisors (see below), whose sum is σ = 159687936. Its totient is φ = 26585480.

The previous prime is 79800197. The next prime is 79800211. The reversal of 79800198 is 89100897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79800197) 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, 19903 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (9980496).

Almost surely, 2^79800198 is an apocalyptic number.

79800198 is an abundant number, since it is smaller than the sum of its proper divisors (79887738).

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

79800198 is a wasteful number, since it uses less digits than its factorization.

79800198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7299.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 79800198 is about 8933.0956560422. The cubic root of 79800198 is about 430.5279219898.

The spelling of 79800198 in words is "seventy-nine million, eight hundred thousand, one hundred ninety-eight".