80934859 has 4 divisors (see below), whose sum is σ = 80970840. Its totient is φ = 80898880.

The previous prime is 80934857. The next prime is 80934883. The reversal of 80934859 is 95843908.

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 80934859 - 2¹ = 80934857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80934857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14374 + ... + 19195.

It is an arithmetic number, because the mean of its divisors is an integer number (20242710).

Almost surely, 2^80934859 is an apocalyptic number.

80934859 is a deficient number, since it is larger than the sum of its proper divisors (35981).

80934859 is a wasteful number, since it uses less digits than its factorization.

80934859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35980.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 80934859 is about 8996.3803276651. The cubic root of 80934859 is about 432.5588528508.

The spelling of 80934859 in words is "eighty million, nine hundred thirty-four thousand, eight hundred fifty-nine".