82500797 has 2 divisors, whose sum is σ = 82500798. Its totient is φ = 82500796.

The previous prime is 82500763. The next prime is 82500799. The reversal of 82500797 is 79700528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41809156 + 40691641 = 6466^2 + 6379^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82500797 is a prime.

Together with 82500799, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82500797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82500799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41250398 + 41250399.

It is an arithmetic number, because the mean of its divisors is an integer number (41250399).

Almost surely, 2^82500797 is an apocalyptic number.

It is an amenable number.

82500797 is a deficient number, since it is larger than the sum of its proper divisors (1).

82500797 is an equidigital number, since it uses as much as digits as its factorization.

82500797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 82500797 is about 9082.9949355926. The cubic root of 82500797 is about 435.3307864027.

The spelling of 82500797 in words is "eighty-two million, five hundred thousand, seven hundred ninety-seven".