8490487 has 2 divisors, whose sum is σ = 8490488. Its totient is φ = 8490486.

The previous prime is 8490457. The next prime is 8490491. The reversal of 8490487 is 7840948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8490487 - 2¹⁹ = 7966199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8490457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4245243 + 4245244.

It is an arithmetic number, because the mean of its divisors is an integer number (4245244).

Almost surely, 2^8490487 is an apocalyptic number.

8490487 is a deficient number, since it is larger than the sum of its proper divisors (1).

8490487 is an equidigital number, since it uses as much as digits as its factorization.

8490487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 8490487 is about 2913.8440246520. The cubic root of 8490487 is about 204.0065918029.

The spelling of 8490487 in words is "eight million, four hundred ninety thousand, four hundred eighty-seven".