80075689 has 4 divisors (see below), whose sum is σ = 80094724. Its totient is φ = 80056656.

The previous prime is 80075687. The next prime is 80075693. The reversal of 80075689 is 98657008.

It is a happy number.

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 66259600 + 13816089 = 8140^2 + 3717^2 .

It is a cyclic number.

It is not a de Polignac number, because 80075689 - 2¹ = 80075687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80075687) 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, 102 + ... + 12655.

It is an arithmetic number, because the mean of its divisors is an integer number (20023681).

Almost surely, 2^80075689 is an apocalyptic number.

It is an amenable number.

80075689 is a deficient number, since it is larger than the sum of its proper divisors (19035).

80075689 is a wasteful number, since it uses less digits than its factorization.

80075689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19034.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 80075689 is about 8948.5020534165. The cubic root of 80075689 is about 431.0227843461.

The spelling of 80075689 in words is "eighty million, seventy-five thousand, six hundred eighty-nine".