83171617 has 2 divisors, whose sum is σ = 83171618. Its totient is φ = 83171616.

The previous prime is 83171603. The next prime is 83171639. The reversal of 83171617 is 71617138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81072016 + 2099601 = 9004^2 + 1449^2 .

It is a cyclic number.

It is not a de Polignac number, because 83171617 - 2⁷ = 83171489 is a prime.

It is not a weakly prime, because it can be changed into another prime (83171117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41585808 + 41585809.

It is an arithmetic number, because the mean of its divisors is an integer number (41585809).

Almost surely, 2^83171617 is an apocalyptic number.

It is an amenable number.

83171617 is a deficient number, since it is larger than the sum of its proper divisors (1).

83171617 is an equidigital number, since it uses as much as digits as its factorization.

83171617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 34.

The square root of 83171617 is about 9119.8474219693. The cubic root of 83171617 is about 436.5075049434.

The spelling of 83171617 in words is "eighty-three million, one hundred seventy-one thousand, six hundred seventeen".