80793891 has 6 divisors (see below), whose sum is σ = 116702300. Its totient is φ = 53862588.

The previous prime is 80793883. The next prime is 80793901. The reversal of 80793891 is 19839708.

It is not a de Polignac number, because 80793891 - 2³ = 80793883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80793091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4488541 + ... + 4488558.

Almost surely, 2^80793891 is an apocalyptic number.

80793891 is a deficient number, since it is larger than the sum of its proper divisors (35908409).

80793891 is a wasteful number, since it uses less digits than its factorization.

80793891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977105 (or 8977102 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 80793891 is about 8988.5422066095. The cubic root of 80793891 is about 432.3075709616.

The spelling of 80793891 in words is "eighty million, seven hundred ninety-three thousand, eight hundred ninety-one".