8397539 has 2 divisors, whose sum is σ = 8397540. Its totient is φ = 8397538.

The previous prime is 8397533. The next prime is 8397547. The reversal of 8397539 is 9357938.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8397539 - 2⁴ = 8397523 is a prime.

It is a super-2 number, since 2×8397539² = 141037322513042, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8397539.

It is not a weakly prime, because it can be changed into another prime (8397533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4198769 + 4198770.

It is an arithmetic number, because the mean of its divisors is an integer number (4198770).

Almost surely, 2^8397539 is an apocalyptic number.

8397539 is a deficient number, since it is larger than the sum of its proper divisors (1).

8397539 is an equidigital number, since it uses as much as digits as its factorization.

8397539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 44.

The square root of 8397539 is about 2897.8507553012. The cubic root of 8397539 is about 203.2594174284.

The spelling of 8397539 in words is "eight million, three hundred ninety-seven thousand, five hundred thirty-nine".