79816998 has 32 divisors (see below), whose sum is σ = 163699200. Its totient is φ = 25932960.

The previous prime is 79816991. The next prime is 79816999. The reversal of 79816998 is 89961897.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79816991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98013 + ... + 98823.

It is an arithmetic number, because the mean of its divisors is an integer number (5115600).

Almost surely, 2^79816998 is an apocalyptic number.

79816998 is an abundant number, since it is smaller than the sum of its proper divisors (83882202).

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

79816998 is a wasteful number, since it uses less digits than its factorization.

79816998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its digits is 1959552, while the sum is 57.

The square root of 79816998 is about 8934.0359300822. The cubic root of 79816998 is about 430.5581322807.

The spelling of 79816998 in words is "seventy-nine million, eight hundred sixteen thousand, nine hundred ninety-eight".