80028812 has 6 divisors (see below), whose sum is σ = 140050428. Its totient is φ = 40014404.

The previous prime is 80028811. The next prime is 80028821. The reversal of 80028812 is 21882008.

It is a super-2 number, since 2×80028812² = 12809221500262688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80028811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10003598 + ... + 10003605.

It is an arithmetic number, because the mean of its divisors is an integer number (23341738).

Almost surely, 2^80028812 is an apocalyptic number.

It is an amenable number.

80028812 is a deficient number, since it is larger than the sum of its proper divisors (60021616).

80028812 is a wasteful number, since it uses less digits than its factorization.

80028812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20007207 (or 20007205 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 80028812 is about 8945.8824047715. The cubic root of 80028812 is about 430.9386597746.

The spelling of 80028812 in words is "eighty million, twenty-eight thousand, eight hundred twelve".