80805489 has 8 divisors (see below), whose sum is σ = 107815680. Its totient is φ = 53832816.

The previous prime is 80805481. The next prime is 80805493. The reversal of 80805489 is 98450808.

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

It is not a de Polignac number, because 80805489 - 2³ = 80805481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80805489.

It is not an unprimeable number, because it can be changed into a prime (80805481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894 + ... + 13295.

It is an arithmetic number, because the mean of its divisors is an integer number (13476960).

Almost surely, 2^80805489 is an apocalyptic number.

It is an amenable number.

80805489 is a deficient number, since it is larger than the sum of its proper divisors (27010191).

80805489 is a wasteful number, since it uses less digits than its factorization.

80805489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18759.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 80805489 is about 8989.1873381302. The cubic root of 80805489 is about 432.3282559551.

The spelling of 80805489 in words is "eighty million, eight hundred five thousand, four hundred eighty-nine".