80930531 has 4 divisors (see below), whose sum is σ = 88287864. Its totient is φ = 73573200.

The previous prime is 80930483. The next prime is 80930539. The reversal of 80930531 is 13503908.

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 80930531 - 2⁶ = 80930467 is a prime.

It is a super-2 number, since 2×80930531² = 13099501695883922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80930494 and 80930503.

It is not an unprimeable number, because it can be changed into a prime (80930539) 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, 3678650 + ... + 3678671.

It is an arithmetic number, because the mean of its divisors is an integer number (22071966).

Almost surely, 2^80930531 is an apocalyptic number.

80930531 is a deficient number, since it is larger than the sum of its proper divisors (7357333).

80930531 is a wasteful number, since it uses less digits than its factorization.

80930531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7357332.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 80930531 is about 8996.1397832626. The cubic root of 80930531 is about 432.5511423368.

The spelling of 80930531 in words is "eighty million, nine hundred thirty thousand, five hundred thirty-one".