80591489 has 8 divisors (see below), whose sum is σ = 89123232. Its totient is φ = 72260640.

The previous prime is 80591479. The next prime is 80591501. The reversal of 80591489 is 98419508.

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

It is a cyclic number.

It is not a de Polignac number, because 80591489 - 2⁴ = 80591473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80591449) 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 7 ways as a sum of consecutive naturals, for example, 49379 + ... + 50984.

It is an arithmetic number, because the mean of its divisors is an integer number (11140404).

Almost surely, 2^80591489 is an apocalyptic number.

It is an amenable number.

80591489 is a deficient number, since it is larger than the sum of its proper divisors (8531743).

80591489 is a wasteful number, since it uses less digits than its factorization.

80591489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100447.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 80591489 is about 8977.2762573066. The cubic root of 80591489 is about 431.9462685373.

The spelling of 80591489 in words is "eighty million, five hundred ninety-one thousand, four hundred eighty-nine".