82115963 has 2 divisors, whose sum is σ = 82115964. Its totient is φ = 82115962.

The previous prime is 82115953. The next prime is 82115983. The reversal of 82115963 is 36951128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82115963 - 2⁴ = 82115947 is a prime.

It is not a weakly prime, because it can be changed into another prime (82115923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41057981 + 41057982.

It is an arithmetic number, because the mean of its divisors is an integer number (41057982).

Almost surely, 2^82115963 is an apocalyptic number.

82115963 is a deficient number, since it is larger than the sum of its proper divisors (1).

82115963 is an equidigital number, since it uses as much as digits as its factorization.

82115963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 82115963 is about 9061.7858615176. The cubic root of 82115963 is about 434.6528484976.

The spelling of 82115963 in words is "eighty-two million, one hundred fifteen thousand, nine hundred sixty-three".