80929531 has 8 divisors (see below), whose sum is σ = 87267600. Its totient is φ = 74799360.

The previous prime is 80929529. The next prime is 80929547. The reversal of 80929531 is 13592908.

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 80929531 - 2¹ = 80929529 is a prime.

It is a super-2 number, since 2×80929531² = 13099177975759922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80929591) 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, 51166 + ... + 52723.

It is an arithmetic number, because the mean of its divisors is an integer number (10908450).

Almost surely, 2^80929531 is an apocalyptic number.

80929531 is a deficient number, since it is larger than the sum of its proper divisors (6338069).

80929531 is a wasteful number, since it uses less digits than its factorization.

80929531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103949.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 80929531 is about 8996.0842036966. The cubic root of 80929531 is about 432.5493607556.

The spelling of 80929531 in words is "eighty million, nine hundred twenty-nine thousand, five hundred thirty-one".