80890457 has 4 divisors (see below), whose sum is σ = 80914596. Its totient is φ = 80866320.

The previous prime is 80890451. The next prime is 80890477. The reversal of 80890457 is 75409808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10010896 + 70879561 = 3164^2 + 8419^2 .

It is a cyclic number.

It is not a de Polignac number, because 80890457 - 2⁴ = 80890441 is a prime.

It is a super-3 number, since 3×80890457³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80890451) 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, 6038 + ... + 14079.

It is an arithmetic number, because the mean of its divisors is an integer number (20228649).

Almost surely, 2^80890457 is an apocalyptic number.

It is an amenable number.

80890457 is a deficient number, since it is larger than the sum of its proper divisors (24139).

80890457 is a wasteful number, since it uses less digits than its factorization.

80890457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24138.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 80890457 is about 8993.9122188289. The cubic root of 80890457 is about 432.4797357608.

The spelling of 80890457 in words is "eighty million, eight hundred ninety thousand, four hundred fifty-seven".