80564700 has 72 divisors (see below), whose sum is σ = 246827952. Its totient is φ = 20218880.

The previous prime is 80564681. The next prime is 80564711. The reversal of 80564700 is 746508.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2799 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (3428166).

Almost surely, 2^80564700 is an apocalyptic number.

It is an amenable number.

80564700 is an abundant number, since it is smaller than the sum of its proper divisors (166263252).

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

80564700 is a wasteful number, since it uses less digits than its factorization.

80564700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15831 (or 15824 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 80564700 is about 8975.7840883123. The cubic root of 80564700 is about 431.8984028917.

The spelling of 80564700 in words is "eighty million, five hundred sixty-four thousand, seven hundred".