80966700 has 54 divisors (see below), whose sum is σ = 253788444. Its totient is φ = 21590880.

The previous prime is 80966689. The next prime is 80966707. The reversal of 80966700 is 766908.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (80966707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44082 + ... + 45881.

It is an arithmetic number, because the mean of its divisors is an integer number (4699786).

Almost surely, 2^80966700 is an apocalyptic number.

It is an amenable number.

80966700 is an abundant number, since it is smaller than the sum of its proper divisors (172821744).

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

80966700 is a wasteful number, since it uses less digits than its factorization.

80966700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89983 (or 89973 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 80966700 is about 8998.1498098220. The cubic root of 80966700 is about 432.6155704828.

The spelling of 80966700 in words is "eighty million, nine hundred sixty-six thousand, seven hundred".