80863791 has 16 divisors (see below), whose sum is σ = 118429440. Its totient is φ = 48850560.

The previous prime is 80863763. The next prime is 80863801. The reversal of 80863791 is 19736808.

It is not a de Polignac number, because 80863791 - 2¹⁰ = 80862767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80863711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29530 + ... + 32151.

It is an arithmetic number, because the mean of its divisors is an integer number (7401840).

Almost surely, 2^80863791 is an apocalyptic number.

80863791 is a deficient number, since it is larger than the sum of its proper divisors (37565649).

80863791 is a wasteful number, since it uses less digits than its factorization.

80863791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61726.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80863791 is about 8992.4296494329. The cubic root of 80863791 is about 432.4322074015.

The spelling of 80863791 in words is "eighty million, eight hundred sixty-three thousand, seven hundred ninety-one".