80736736 has 48 divisors (see below), whose sum is σ = 162993600. Its totient is φ = 39356928.

The previous prime is 80736731. The next prime is 80736737. The reversal of 80736736 is 63763708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80736731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275406 + ... + 275698.

It is an arithmetic number, because the mean of its divisors is an integer number (3395700).

Almost surely, 2^80736736 is an apocalyptic number.

It is an amenable number.

80736736 is an abundant number, since it is smaller than the sum of its proper divisors (82256864).

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

80736736 is a wasteful number, since it uses less digits than its factorization.

80736736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 80736736 is about 8985.3623187938. The cubic root of 80736736 is about 432.2056062891.

The spelling of 80736736 in words is "eighty million, seven hundred thirty-six thousand, seven hundred thirty-six".