8490253 has 2 divisors, whose sum is σ = 8490254. Its totient is φ = 8490252.

The previous prime is 8490247. The next prime is 8490271. The reversal of 8490253 is 3520948.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8191044 + 299209 = 2862^2 + 547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8490253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8490233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4245126 + 4245127.

It is an arithmetic number, because the mean of its divisors is an integer number (4245127).

Almost surely, 2^8490253 is an apocalyptic number.

It is an amenable number.

8490253 is a deficient number, since it is larger than the sum of its proper divisors (1).

8490253 is an equidigital number, since it uses as much as digits as its factorization.

8490253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8490253 is about 2913.8038712309. The cubic root of 8490253 is about 204.0047176277.

The spelling of 8490253 in words is "eight million, four hundred ninety thousand, two hundred fifty-three".