80845632 has 84 divisors (see below), whose sum is σ = 264846816. Its totient is φ = 23097600.

The previous prime is 80845607. The next prime is 80845637. The reversal of 80845632 is 23654808.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80845637) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5994 + ... + 14057.

Almost surely, 2^80845632 is an apocalyptic number.

It is an amenable number.

80845632 is an abundant number, since it is smaller than the sum of its proper divisors (184001184).

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

80845632 is a wasteful number, since it uses less digits than its factorization.

80845632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20076 (or 20063 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 80845632 is about 8991.4199101143. The cubic root of 80845632 is about 432.3998355812.

The spelling of 80845632 in words is "eighty million, eight hundred forty-five thousand, six hundred thirty-two".