80507808 has 36 divisors (see below), whose sum is σ = 228944898. Its totient is φ = 26835840.

The previous prime is 80507773. The next prime is 80507809. The reversal of 80507808 is 80870508.

It can be written as a sum of positive squares in only one way, i.e., 53758224 + 26749584 = 7332^2 + 5172^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 (80507809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139483 + ... + 140058.

Almost surely, 2^80507808 is an apocalyptic number.

It is an amenable number.

80507808 is an abundant number, since it is smaller than the sum of its proper divisors (148437090).

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

80507808 is a wasteful number, since it uses less digits than its factorization.

80507808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279557 (or 279546 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 80507808 is about 8972.6143347410. The cubic root of 80507808 is about 431.7967150554.

The spelling of 80507808 in words is "eighty million, five hundred seven thousand, eight hundred eight".