80085091 has 4 divisors (see below), whose sum is σ = 80134912. Its totient is φ = 80035272.

The previous prime is 80085077. The next prime is 80085127. The reversal of 80085091 is 19058008.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80085091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80085041) 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, 22416 + ... + 25741.

It is an arithmetic number, because the mean of its divisors is an integer number (20033728).

Almost surely, 2^80085091 is an apocalyptic number.

80085091 is a deficient number, since it is larger than the sum of its proper divisors (49821).

80085091 is a wasteful number, since it uses less digits than its factorization.

80085091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49820.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 80085091 is about 8949.0273773187. The cubic root of 80085091 is about 431.0396530432.

The spelling of 80085091 in words is "eighty million, eighty-five thousand, ninety-one".