80616756 has 24 divisors (see below), whose sum is σ = 205206624. Its totient is φ = 24429280.

The previous prime is 80616751. The next prime is 80616779. The reversal of 80616756 is 65761608.

It is a super-2 number, since 2×80616756² = 12998122695927072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80616751) 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 7 ways as a sum of consecutive naturals, for example, 305235 + ... + 305498.

It is an arithmetic number, because the mean of its divisors is an integer number (8550276).

Almost surely, 2^80616756 is an apocalyptic number.

It is an amenable number.

80616756 is an abundant number, since it is smaller than the sum of its proper divisors (124589868).

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

80616756 is a wasteful number, since it uses less digits than its factorization.

80616756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610751 (or 610749 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 80616756 is about 8978.6834224178. The cubic root of 80616756 is about 431.9914050073.

The spelling of 80616756 in words is "eighty million, six hundred sixteen thousand, seven hundred fifty-six".