80931 has 8 divisors (see below), whose sum is σ = 110160. Its totient is φ = 52832.

The previous prime is 80929. The next prime is 80933. The reversal of 80931 is 13908.

It is an interprime number because it is at equal distance from previous prime (80929) and next prime (80933).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80931 - 2¹ = 80929 is a prime.

It is a super-2 number, since 2×80931² = 13099653522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80898 and 80907.

It is not an unprimeable number, because it can be changed into a prime (80933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96 + ... + 413.

It is an arithmetic number, because the mean of its divisors is an integer number (13770).

2⁸⁰⁹³¹ is an apocalyptic number.

80931 is a deficient number, since it is larger than the sum of its proper divisors (29229).

80931 is a wasteful number, since it uses less digits than its factorization.

80931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 80931 is about 284.4837429450. The cubic root of 80931 is about 43.2551977893.

The spelling of 80931 in words is "eighty thousand, nine hundred thirty-one".