80605812 has 48 divisors (see below), whose sum is σ = 215574912. Its totient is φ = 22963200.

The previous prime is 80605793. The next prime is 80605813. The reversal of 80605812 is 21850608.

It is a self number, because there is not a number n which added to its sum of digits gives 80605812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80605813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32488 + ... + 34880.

It is an arithmetic number, because the mean of its divisors is an integer number (4491144).

Almost surely, 2^80605812 is an apocalyptic number.

It is an amenable number.

80605812 is an abundant number, since it is smaller than the sum of its proper divisors (134969100).

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

80605812 is a wasteful number, since it uses less digits than its factorization.

80605812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80605812 is about 8978.0739582608. The cubic root of 80605812 is about 431.9718560197.

The spelling of 80605812 in words is "eighty million, six hundred five thousand, eight hundred twelve".