80639195 has 24 divisors (see below), whose sum is σ = 119761056. Its totient is φ = 51038208.

The previous prime is 80639191. The next prime is 80639201. The reversal of 80639195 is 59193608.

It is not a de Polignac number, because 80639195 - 2² = 80639191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80639191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 902 + ... + 12731.

It is an arithmetic number, because the mean of its divisors is an integer number (4990044).

Almost surely, 2^80639195 is an apocalyptic number.

80639195 is a deficient number, since it is larger than the sum of its proper divisors (39121861).

80639195 is a wasteful number, since it uses less digits than its factorization.

80639195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13671 (or 13658 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 80639195 is about 8979.9329062082. The cubic root of 80639195 is about 432.0314816878.

The spelling of 80639195 in words is "eighty million, six hundred thirty-nine thousand, one hundred ninety-five".