8490539 has 2 divisors, whose sum is σ = 8490540. Its totient is φ = 8490538.

The previous prime is 8490499. The next prime is 8490541. The reversal of 8490539 is 9350948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8490539 - 2²⁰ = 7441963 is a prime.

Together with 8490541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8490589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4245269 + 4245270.

It is an arithmetic number, because the mean of its divisors is an integer number (4245270).

Almost surely, 2^8490539 is an apocalyptic number.

8490539 is a deficient number, since it is larger than the sum of its proper divisors (1).

8490539 is an equidigital number, since it uses as much as digits as its factorization.

8490539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 8490539 is about 2913.8529475593. The cubic root of 8490539 is about 204.0070082816.

The spelling of 8490539 in words is "eight million, four hundred ninety thousand, five hundred thirty-nine".