80938871 has 4 divisors (see below), whose sum is σ = 87164952. Its totient is φ = 74712792.

The previous prime is 80938859. The next prime is 80938873. The reversal of 80938871 is 17883908.

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 80938871 - 2¹⁰ = 80937847 is a prime.

It is a super-2 number, since 2×80938871² = 13102201677509282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80938873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113021 + ... + 3113046.

It is an arithmetic number, because the mean of its divisors is an integer number (21791238).

Almost surely, 2^80938871 is an apocalyptic number.

80938871 is a deficient number, since it is larger than the sum of its proper divisors (6226081).

80938871 is a wasteful number, since it uses less digits than its factorization.

80938871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226080.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 80938871 is about 8996.6033034696. The cubic root of 80938871 is about 432.5660001520.

The spelling of 80938871 in words is "eighty million, nine hundred thirty-eight thousand, eight hundred seventy-one".