80890211 has 4 divisors (see below), whose sum is σ = 81123672. Its totient is φ = 80656752.

The previous prime is 80890189. The next prime is 80890261. The reversal of 80890211 is 11209808.

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 80890211 - 2²² = 76695907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80890261) 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, 116210 + ... + 116903.

It is an arithmetic number, because the mean of its divisors is an integer number (20280918).

Almost surely, 2^80890211 is an apocalyptic number.

80890211 is a deficient number, since it is larger than the sum of its proper divisors (233461).

80890211 is a wasteful number, since it uses less digits than its factorization.

80890211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233460.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 80890211 is about 8993.8985429012. The cubic root of 80890211 is about 432.4792973484.

It can be divided in two parts, 808 and 90211, that added together give a palindrome (91019).

The spelling of 80890211 in words is "eighty million, eight hundred ninety thousand, two hundred eleven".