80623866 has 16 divisors (see below), whose sum is σ = 161973504. Its totient is φ = 26753664.

The previous prime is 80623853. The next prime is 80623867. The reversal of 80623866 is 66832608.

It is not an unprimeable number, because it can be changed into a prime (80623867) 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, 28791 + ... + 31466.

It is an arithmetic number, because the mean of its divisors is an integer number (10123344).

Almost surely, 2^80623866 is an apocalyptic number.

80623866 is an abundant number, since it is smaller than the sum of its proper divisors (81349638).

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

80623866 is a wasteful number, since it uses less digits than its factorization.

80623866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60485.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 80623866 is about 8979.0793514703. The cubic root of 80623866 is about 432.0041044706.

The spelling of 80623866 in words is "eighty million, six hundred twenty-three thousand, eight hundred sixty-six".