80808631 has 4 divisors (see below), whose sum is σ = 80855064. Its totient is φ = 80762200.

The previous prime is 80808619. The next prime is 80808641. The reversal of 80808631 is 13680808.

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 80808631 - 2⁷ = 80808503 is a prime.

It is a super-2 number, since 2×80808631² = 13060069688188322, 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 (80808601) 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, 20500 + ... + 24121.

It is an arithmetic number, because the mean of its divisors is an integer number (20213766).

Almost surely, 2^80808631 is an apocalyptic number.

80808631 is a deficient number, since it is larger than the sum of its proper divisors (46433).

80808631 is a wasteful number, since it uses less digits than its factorization.

80808631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46432.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 80808631 is about 8989.3621019514. The cubic root of 80808631 is about 432.3338593606. Note that the first 3 decimals are identical.

The spelling of 80808631 in words is "eighty million, eight hundred eight thousand, six hundred thirty-one".