83538617 has 2 divisors, whose sum is σ = 83538618. Its totient is φ = 83538616.

The previous prime is 83538613. The next prime is 83538661. The reversal of 83538617 is 71683538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 40819321 = 6536^2 + 6389^2 .

It is a cyclic number.

It is not a de Polignac number, because 83538617 - 2² = 83538613 is a prime.

It is a super-3 number, since 3×83538617³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (83538613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41769308 + 41769309.

It is an arithmetic number, because the mean of its divisors is an integer number (41769309).

Almost surely, 2^83538617 is an apocalyptic number.

It is an amenable number.

83538617 is a deficient number, since it is larger than the sum of its proper divisors (1).

83538617 is an equidigital number, since it uses as much as digits as its factorization.

83538617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 83538617 is about 9139.9462252247. The cubic root of 83538617 is about 437.1486018613.

The spelling of 83538617 in words is "eighty-three million, five hundred thirty-eight thousand, six hundred seventeen".