80977886 has 16 divisors (see below), whose sum is σ = 139484160. Its totient is φ = 34870680.

The previous prime is 80977837. The next prime is 80977907. The reversal of 80977886 is 68877908.

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, 96446 + ... + 97281.

It is an arithmetic number, because the mean of its divisors is an integer number (8717760).

Almost surely, 2^80977886 is an apocalyptic number.

80977886 is a deficient number, since it is larger than the sum of its proper divisors (58506274).

80977886 is a wasteful number, since it uses less digits than its factorization.

80977886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193759.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 80977886 is about 8998.7713605803. The cubic root of 80977886 is about 432.6354923145.

The spelling of 80977886 in words is "eighty million, nine hundred seventy-seven thousand, eight hundred eighty-six".