82757897 has 2 divisors, whose sum is σ = 82757898. Its totient is φ = 82757896.

The previous prime is 82757893. The next prime is 82757953. The reversal of 82757897 is 79875728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 40819321 = 6476^2 + 6389^2 .

It is a cyclic number.

It is not a de Polignac number, because 82757897 - 2² = 82757893 is a prime.

It is not a weakly prime, because it can be changed into another prime (82757891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41378948 + 41378949.

It is an arithmetic number, because the mean of its divisors is an integer number (41378949).

Almost surely, 2^82757897 is an apocalyptic number.

It is an amenable number.

82757897 is a deficient number, since it is larger than the sum of its proper divisors (1).

82757897 is an equidigital number, since it uses as much as digits as its factorization.

82757897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1975680, while the sum is 53.

The square root of 82757897 is about 9097.1367473508. The cubic root of 82757897 is about 435.7825294421.

The spelling of 82757897 in words is "eighty-two million, seven hundred fifty-seven thousand, eight hundred ninety-seven".