82261297 has 2 divisors, whose sum is σ = 82261298. Its totient is φ = 82261296.

The previous prime is 82261243. The next prime is 82261303. The reversal of 82261297 is 79216228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66650896 + 15610401 = 8164^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 82261297 - 2¹¹ = 82259249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82261897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41130648 + 41130649.

It is an arithmetic number, because the mean of its divisors is an integer number (41130649).

Almost surely, 2^82261297 is an apocalyptic number.

It is an amenable number.

82261297 is a deficient number, since it is larger than the sum of its proper divisors (1).

82261297 is an equidigital number, since it uses as much as digits as its factorization.

82261297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 82261297 is about 9069.8013759950. The cubic root of 82261297 is about 434.9091226902.

The spelling of 82261297 in words is "eighty-two million, two hundred sixty-one thousand, two hundred ninety-seven".