80965632 has 104 divisors (see below), whose sum is σ = 235900800. Its totient is φ = 24494080.

The previous prime is 80965627. The next prime is 80965667. The reversal of 80965632 is 23656908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134869 + ... + 135467.

Almost surely, 2^80965632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80965632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117950400).

80965632 is an abundant number, since it is smaller than the sum of its proper divisors (154935168).

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

80965632 is a wasteful number, since it uses less digits than its factorization.

80965632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 80965632 is about 8998.0904640929. The cubic root of 80965632 is about 432.6136683203.

The spelling of 80965632 in words is "eighty million, nine hundred sixty-five thousand, six hundred thirty-two".