990300897 has 10 divisors (see below), whose sum is σ = 1479338498. Its totient is φ = 660200544.

The previous prime is 990300869. The next prime is 990300917. The reversal of 990300897 is 798003099.

It is a happy number.

990300897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 583512336 + 406788561 = 24156^2 + 20169^2 .

It is not a de Polignac number, because 990300897 - 2¹⁹ = 989776609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990700897) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6112888 + ... + 6113049.

Almost surely, 2^990300897 is an apocalyptic number.

It is an amenable number.

990300897 is a deficient number, since it is larger than the sum of its proper divisors (489037601).

990300897 is a wasteful number, since it uses less digits than its factorization.

990300897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12225949 (or 12225940 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 990300897 is about 31469.0466490486. The cubic root of 990300897 is about 996.7564564667.

The spelling of 990300897 in words is "nine hundred ninety million, three hundred thousand, eight hundred ninety-seven".