80890093 has 4 divisors (see below), whose sum is σ = 80912700. Its totient is φ = 80867488.

The previous prime is 80890091. The next prime is 80890109. The reversal of 80890093 is 39009808.

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 39904489 + 40985604 = 6317^2 + 6402^2 .

It is a cyclic number.

It is not a de Polignac number, because 80890093 - 2¹ = 80890091 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80890091) 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, 4618 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (20228175).

Almost surely, 2^80890093 is an apocalyptic number.

It is an amenable number.

80890093 is a deficient number, since it is larger than the sum of its proper divisors (22607).

80890093 is a wasteful number, since it uses less digits than its factorization.

80890093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22606.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 80890093 is about 8993.8919828959. The cubic root of 80890093 is about 432.4790870528.

The spelling of 80890093 in words is "eighty million, eight hundred ninety thousand, ninety-three".