80959886 has 16 divisors (see below), whose sum is σ = 140221536. Its totient is φ = 34338816.

The previous prime is 80959849. The next prime is 80959889. The reversal of 80959886 is 68895908.

It is a super-2 number, since 2×80959886² = 13109006282265992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80959889) 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, 28451 + ... + 31166.

It is an arithmetic number, because the mean of its divisors is an integer number (8763846).

Almost surely, 2^80959886 is an apocalyptic number.

80959886 is a deficient number, since it is larger than the sum of its proper divisors (59261650).

80959886 is a wasteful number, since it uses less digits than its factorization.

80959886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59723.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 80959886 is about 8997.7711684617. The cubic root of 80959886 is about 432.6034341140.

The spelling of 80959886 in words is "eighty million, nine hundred fifty-nine thousand, eight hundred eighty-six".