80788866 has 16 divisors (see below), whose sum is σ = 162195264. Its totient is φ = 26826704.

The previous prime is 80788861. The next prime is 80788889. The reversal of 80788866 is 66888708.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80788861) 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, 24021 + ... + 27176.

It is an arithmetic number, because the mean of its divisors is an integer number (10137204).

Almost surely, 2^80788866 is an apocalyptic number.

80788866 is an abundant number, since it is smaller than the sum of its proper divisors (81406398).

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

80788866 is a wasteful number, since it uses less digits than its factorization.

80788866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51465.

The product of its (nonzero) digits is 1032192, while the sum is 51.

The square root of 80788866 is about 8988.2626797396. The cubic root of 80788866 is about 432.2986082767.

The spelling of 80788866 in words is "eighty million, seven hundred eighty-eight thousand, eight hundred sixty-six".