80310812 has 6 divisors (see below), whose sum is σ = 140543928. Its totient is φ = 40155404.

The previous prime is 80310787. The next prime is 80310817. The reversal of 80310812 is 21801308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80310817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10038848 + ... + 10038855.

It is an arithmetic number, because the mean of its divisors is an integer number (23423988).

Almost surely, 2^80310812 is an apocalyptic number.

It is an amenable number.

80310812 is a deficient number, since it is larger than the sum of its proper divisors (60233116).

80310812 is a wasteful number, since it uses less digits than its factorization.

80310812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20077707 (or 20077705 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 80310812 is about 8961.6299856667. The cubic root of 80310812 is about 431.4442370273. Note that the first 3 decimals are identical.

The spelling of 80310812 in words is "eighty million, three hundred ten thousand, eight hundred twelve".