82040017 has 2 divisors, whose sum is σ = 82040018. Its totient is φ = 82040016.

The previous prime is 82039987. The next prime is 82040029. The reversal of 82040017 is 71004028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66977856 + 15062161 = 8184^2 + 3881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82040017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82040017.

It is not a weakly prime, because it can be changed into another prime (82040047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41020008 + 41020009.

It is an arithmetic number, because the mean of its divisors is an integer number (41020009).

Almost surely, 2^82040017 is an apocalyptic number.

It is an amenable number.

82040017 is a deficient number, since it is larger than the sum of its proper divisors (1).

82040017 is an equidigital number, since it uses as much as digits as its factorization.

82040017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 82040017 is about 9057.5944378185. The cubic root of 82040017 is about 434.5188090819.

The spelling of 82040017 in words is "eighty-two million, forty thousand, seventeen".