82542917 has 2 divisors, whose sum is σ = 82542918. Its totient is φ = 82542916.

The previous prime is 82542869. The next prime is 82542931. The reversal of 82542917 is 71924528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43217476 + 39325441 = 6574^2 + 6271^2 .

It is a cyclic number.

It is not a de Polignac number, because 82542917 - 2⁸ = 82542661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82542017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41271458 + 41271459.

It is an arithmetic number, because the mean of its divisors is an integer number (41271459).

Almost surely, 2^82542917 is an apocalyptic number.

It is an amenable number.

82542917 is a deficient number, since it is larger than the sum of its proper divisors (1).

82542917 is an equidigital number, since it uses as much as digits as its factorization.

82542917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 82542917 is about 9085.3132582207. The cubic root of 82542917 is about 435.4048584676.

The spelling of 82542917 in words is "eighty-two million, five hundred forty-two thousand, nine hundred seventeen".