80989418 has 16 divisors (see below), whose sum is σ = 124200000. Its totient is φ = 39596832.

The previous prime is 80989387. The next prime is 80989421. The reversal of 80989418 is 81498908.

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, 21758 + ... + 25206.

It is an arithmetic number, because the mean of its divisors is an integer number (7762500).

Almost surely, 2^80989418 is an apocalyptic number.

80989418 is a deficient number, since it is larger than the sum of its proper divisors (43210582).

80989418 is a wasteful number, since it uses less digits than its factorization.

80989418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 80989418 is about 8999.4120919091. The cubic root of 80989418 is about 432.6560284384.

The spelling of 80989418 in words is "eighty million, nine hundred eighty-nine thousand, four hundred eighteen".