80890431 has 8 divisors (see below), whose sum is σ = 110148864. Its totient is φ = 52779480.

The previous prime is 80890427. The next prime is 80890441. The reversal of 80890431 is 13409808.

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

It is not a de Polignac number, because 80890431 - 2² = 80890427 is a prime.

It is a super-2 number, since 2×80890431² = 13086523654731522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80890392 and 80890401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80890421) 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, 286705 + ... + 286986.

It is an arithmetic number, because the mean of its divisors is an integer number (13768608).

Almost surely, 2^80890431 is an apocalyptic number.

80890431 is a deficient number, since it is larger than the sum of its proper divisors (29258433).

80890431 is a wasteful number, since it uses less digits than its factorization.

80890431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573741.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 80890431 is about 8993.9107734066. The cubic root of 80890431 is about 432.4796894246.

The spelling of 80890431 in words is "eighty million, eight hundred ninety thousand, four hundred thirty-one".