80500859 has 4 divisors (see below), whose sum is σ = 82373016. Its totient is φ = 78628704.

The previous prime is 80500843. The next prime is 80500867. The reversal of 80500859 is 95800508.

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 80500859 - 2⁴ = 80500843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80500829) 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, 936014 + ... + 936099.

It is an arithmetic number, because the mean of its divisors is an integer number (20593254).

Almost surely, 2^80500859 is an apocalyptic number.

80500859 is a deficient number, since it is larger than the sum of its proper divisors (1872157).

80500859 is a wasteful number, since it uses less digits than its factorization.

80500859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872156.

The product of its (nonzero) digits is 14400, while the sum is 35.

The square root of 80500859 is about 8972.2270925339. The cubic root of 80500859 is about 431.7842912430.

The spelling of 80500859 in words is "eighty million, five hundred thousand, eight hundred fifty-nine".