80750689 has 16 divisors (see below), whose sum is σ = 85466304. Its totient is φ = 76204800.

The previous prime is 80750671. The next prime is 80750693. The reversal of 80750689 is 98605708.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80750689 - 2⁹ = 80750177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (80750609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287229 + ... + 287509.

It is an arithmetic number, because the mean of its divisors is an integer number (5341644).

Almost surely, 2^80750689 is an apocalyptic number.

It is an amenable number.

80750689 is a deficient number, since it is larger than the sum of its proper divisors (4715615).

80750689 is a wasteful number, since it uses less digits than its factorization.

80750689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528.

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

The square root of 80750689 is about 8986.1387147094. The cubic root of 80750689 is about 432.2305029171.

The spelling of 80750689 in words is "eighty million, seven hundred fifty thousand, six hundred eighty-nine".