80831564 has 24 divisors (see below), whose sum is σ = 154560000. Its totient is φ = 36683280.

The previous prime is 80831503. The next prime is 80831603. The reversal of 80831564 is 46513808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39437 + ... + 41435.

It is an arithmetic number, because the mean of its divisors is an integer number (6440000).

Almost surely, 2^80831564 is an apocalyptic number.

It is an amenable number.

80831564 is a deficient number, since it is larger than the sum of its proper divisors (73728436).

80831564 is a wasteful number, since it uses less digits than its factorization.

80831564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 80831564 is about 8990.6375747218. The cubic root of 80831564 is about 432.3747534025.

The spelling of 80831564 in words is "eighty million, eight hundred thirty-one thousand, five hundred sixty-four".