80012939 has 4 divisors (see below), whose sum is σ = 80040480. Its totient is φ = 79985400.

The previous prime is 80012923. The next prime is 80012957. The reversal of 80012939 is 93921008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80012939 - 2⁴ = 80012923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80012969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8819 + ... + 15420.

It is an arithmetic number, because the mean of its divisors is an integer number (20010120).

Almost surely, 2^80012939 is an apocalyptic number.

80012939 is a deficient number, since it is larger than the sum of its proper divisors (27541).

80012939 is a wasteful number, since it uses less digits than its factorization.

80012939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27540.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 80012939 is about 8944.9951928439. The cubic root of 80012939 is about 430.9101669461.

The spelling of 80012939 in words is "eighty million, twelve thousand, nine hundred thirty-nine".