82481317 has 2 divisors, whose sum is σ = 82481318. Its totient is φ = 82481316.

The previous prime is 82481309. The next prime is 82481341. The reversal of 82481317 is 71318428.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61449921 + 21031396 = 7839^2 + 4586^2 .

It is a cyclic number.

It is not a de Polignac number, because 82481317 - 2³ = 82481309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82481387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41240658 + 41240659.

It is an arithmetic number, because the mean of its divisors is an integer number (41240659).

Almost surely, 2^82481317 is an apocalyptic number.

It is an amenable number.

82481317 is a deficient number, since it is larger than the sum of its proper divisors (1).

82481317 is an equidigital number, since it uses as much as digits as its factorization.

82481317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 34.

The square root of 82481317 is about 9081.9225387580. The cubic root of 82481317 is about 435.2965204257.

The spelling of 82481317 in words is "eighty-two million, four hundred eighty-one thousand, three hundred seventeen".