82340857 has 2 divisors, whose sum is σ = 82340858. Its totient is φ = 82340856.

The previous prime is 82340837. The next prime is 82340879. The reversal of 82340857 is 75804328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48944016 + 33396841 = 6996^2 + 5779^2 .

It is a cyclic number.

It is not a de Polignac number, because 82340857 - 2⁷ = 82340729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82340807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41170428 + 41170429.

It is an arithmetic number, because the mean of its divisors is an integer number (41170429).

Almost surely, 2^82340857 is an apocalyptic number.

It is an amenable number.

82340857 is a deficient number, since it is larger than the sum of its proper divisors (1).

82340857 is an equidigital number, since it uses as much as digits as its factorization.

82340857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 82340857 is about 9074.1862996084. The cubic root of 82340857 is about 435.0492867042.

The spelling of 82340857 in words is "eighty-two million, three hundred forty thousand, eight hundred fifty-seven".