82916791 has 2 divisors, whose sum is σ = 82916792. Its totient is φ = 82916790.

The previous prime is 82916759. The next prime is 82916833. The reversal of 82916791 is 19761928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82916791 - 2⁵ = 82916759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82916731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41458395 + 41458396.

It is an arithmetic number, because the mean of its divisors is an integer number (41458396).

Almost surely, 2^82916791 is an apocalyptic number.

82916791 is a deficient number, since it is larger than the sum of its proper divisors (1).

82916791 is an equidigital number, since it uses as much as digits as its factorization.

82916791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 43.

The square root of 82916791 is about 9105.8657468689. The cubic root of 82916791 is about 436.0612499171.

The spelling of 82916791 in words is "eighty-two million, nine hundred sixteen thousand, seven hundred ninety-one".