80868593 has 4 divisors (see below), whose sum is σ = 87089268. Its totient is φ = 74647920.

The previous prime is 80868589. The next prime is 80868611. The reversal of 80868593 is 39586808.

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 55234624 + 25633969 = 7432^2 + 5063^2 .

It is a cyclic number.

It is not a de Polignac number, because 80868593 - 2² = 80868589 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80868533) 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, 3110318 + ... + 3110343.

It is an arithmetic number, because the mean of its divisors is an integer number (21772317).

Almost surely, 2^80868593 is an apocalyptic number.

It is an amenable number.

80868593 is a deficient number, since it is larger than the sum of its proper divisors (6220675).

80868593 is a wasteful number, since it uses less digits than its factorization.

80868593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220674.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 80868593 is about 8992.6966478360. The cubic root of 80868593 is about 432.4407670560.

The spelling of 80868593 in words is "eighty million, eight hundred sixty-eight thousand, five hundred ninety-three".