9990299 has 6 divisors (see below), whose sum is σ = 10909956. Its totient is φ = 9072560.

The previous prime is 9990289. The next prime is 9990307. The reversal of 9990299 is 9920999.

It is a happy number.

It is not a de Polignac number, because 9990299 - 2⁴ = 9990283 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9990209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10007 + ... + 10959.

It is an arithmetic number, because the mean of its divisors is an integer number (1818326).

Almost surely, 2^9990299 is an apocalyptic number.

9990299 is a deficient number, since it is larger than the sum of its proper divisors (919657).

9990299 is an frugal number, since it uses more digits than its factorization.

9990299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 9990299 is about 3160.7434252087. The cubic root of 9990299 is about 215.3737792266.

It can be divided in two parts, 99902 and 99, that added together give a palindrome (100001).

The spelling of 9990299 in words is "nine million, nine hundred ninety thousand, two hundred ninety-nine".