82293817 has 2 divisors, whose sum is σ = 82293818. Its totient is φ = 82293816.

The previous prime is 82293791. The next prime is 82293833. The reversal of 82293817 is 71839228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66896041 + 15397776 = 8179^2 + 3924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82293817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82293817.

It is not a weakly prime, because it can be changed into another prime (82293857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41146908 + 41146909.

It is an arithmetic number, because the mean of its divisors is an integer number (41146909).

Almost surely, 2^82293817 is an apocalyptic number.

It is an amenable number.

82293817 is a deficient number, since it is larger than the sum of its proper divisors (1).

82293817 is an equidigital number, since it uses as much as digits as its factorization.

82293817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 40.

The square root of 82293817 is about 9071.5939613719. The cubic root of 82293817 is about 434.9664253824.

The spelling of 82293817 in words is "eighty-two million, two hundred ninety-three thousand, eight hundred seventeen".