80689159 has 4 divisors (see below), whose sum is σ = 81521104. Its totient is φ = 79857216.

The previous prime is 80689151. The next prime is 80689183. The reversal of 80689159 is 95198608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80689159 - 2³ = 80689151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80689151) 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 3 ways as a sum of consecutive naturals, for example, 415827 + ... + 416020.

It is an arithmetic number, because the mean of its divisors is an integer number (20380276).

Almost surely, 2^80689159 is an apocalyptic number.

80689159 is a deficient number, since it is larger than the sum of its proper divisors (831945).

80689159 is an equidigital number, since it uses as much as digits as its factorization.

80689159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831944.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 80689159 is about 8982.7144561096. The cubic root of 80689159 is about 432.1206920867.

The spelling of 80689159 in words is "eighty million, six hundred eighty-nine thousand, one hundred fifty-nine".