990087503 has 2 divisors, whose sum is σ = 990087504. Its totient is φ = 990087502.

The previous prime is 990087481. The next prime is 990087529. The reversal of 990087503 is 305780099.

990087503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990087503 - 2¹⁰ = 990086479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990087533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495043751 + 495043752.

It is an arithmetic number, because the mean of its divisors is an integer number (495043752).

Almost surely, 2^990087503 is an apocalyptic number.

990087503 is a deficient number, since it is larger than the sum of its proper divisors (1).

990087503 is an equidigital number, since it uses as much as digits as its factorization.

990087503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 990087503 is about 31465.6559283292. The cubic root of 990087503 is about 996.6848563003.

The spelling of 990087503 in words is "nine hundred ninety million, eighty-seven thousand, five hundred three".