80198079 has 32 divisors (see below), whose sum is σ = 124346880. Its totient is φ = 45564288.

The previous prime is 80198077. The next prime is 80198093. The reversal of 80198079 is 97089108.

It is not a de Polignac number, because 80198079 - 2¹ = 80198077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80198079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80198071) 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, 24472 + ... + 27554.

It is an arithmetic number, because the mean of its divisors is an integer number (3885840).

Almost surely, 2^80198079 is an apocalyptic number.

80198079 is a deficient number, since it is larger than the sum of its proper divisors (44148801).

80198079 is a wasteful number, since it uses less digits than its factorization.

80198079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151.

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

The square root of 80198079 is about 8955.3380170712. The cubic root of 80198079 is about 431.2422684604.

The spelling of 80198079 in words is "eighty million, one hundred ninety-eight thousand, seventy-nine".