80797998 has 16 divisors (see below), whose sum is σ = 161692416. Its totient is φ = 26916600.

The previous prime is 80797987. The next prime is 80798017. The reversal of 80797998 is 89979708.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11473 + ... + 17123.

It is an arithmetic number, because the mean of its divisors is an integer number (10105776).

Almost surely, 2^80797998 is an apocalyptic number.

80797998 is an abundant number, since it is smaller than the sum of its proper divisors (80894418).

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

80797998 is a wasteful number, since it uses less digits than its factorization.

80797998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039.

The product of its (nonzero) digits is 2286144, while the sum is 57.

The square root of 80797998 is about 8988.7706612195. The cubic root of 80797998 is about 432.3148960085.

The spelling of 80797998 in words is "eighty million, seven hundred ninety-seven thousand, nine hundred ninety-eight".