990000297 has 24 divisors (see below), whose sum is σ = 1680002688. Its totient is φ = 553845600.

The previous prime is 990000251. The next prime is 990000317. The reversal of 990000297 is 792000099.

It is not a de Polignac number, because 990000297 - 2¹⁴ = 989983913 is a prime.

990000297 is a modest number, since divided by 297 gives 99 as remainder.

It is not an unprimeable number, because it can be changed into a prime (990000217) 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 in 23 ways as a sum of consecutive naturals, for example, 383329 + ... + 385902.

It is an arithmetic number, because the mean of its divisors is an integer number (70000112).

Almost surely, 2^990000297 is an apocalyptic number.

It is an amenable number.

990000297 is a deficient number, since it is larger than the sum of its proper divisors (690002391).

990000297 is a wasteful number, since it uses less digits than its factorization.

990000297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769261 (or 769258 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 990000297 is about 31464.2701647440. The cubic root of 990000297 is about 996.6555930781.

It can be divided in two parts, 9900002 and 97, that added together give a palindrome (9900099).

The spelling of 990000297 in words is "nine hundred ninety million, two hundred ninety-seven", and thus it is an aban number.