902490487 has 2 divisors, whose sum is σ = 902490488. Its totient is φ = 902490486.

The previous prime is 902490437. The next prime is 902490521. The reversal of 902490487 is 784094209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 902490487 - 2⁷ = 902490359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (902490437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451245243 + 451245244.

It is an arithmetic number, because the mean of its divisors is an integer number (451245244).

Almost surely, 2^902490487 is an apocalyptic number.

902490487 is a deficient number, since it is larger than the sum of its proper divisors (1).

902490487 is an equidigital number, since it uses as much as digits as its factorization.

902490487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 902490487 is about 30041.4794409330. The cubic root of 902490487 is about 966.3791343137.

The spelling of 902490487 in words is "nine hundred two million, four hundred ninety thousand, four hundred eighty-seven".