80861164 has 12 divisors (see below), whose sum is σ = 146386800. Its totient is φ = 39036368.

The previous prime is 80861153. The next prime is 80861167. The reversal of 80861164 is 46116808.

It is not an unprimeable number, because it can be changed into a prime (80861167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348424 + ... + 348655.

It is an arithmetic number, because the mean of its divisors is an integer number (12198900).

Almost surely, 2^80861164 is an apocalyptic number.

It is an amenable number.

80861164 is a deficient number, since it is larger than the sum of its proper divisors (65525636).

80861164 is a wasteful number, since it uses less digits than its factorization.

80861164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697112 (or 697110 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 80861164 is about 8992.2835809376. The cubic root of 80861164 is about 432.4275245815.

The spelling of 80861164 in words is "eighty million, eight hundred sixty-one thousand, one hundred sixty-four".