990319 has 8 divisors (see below), whose sum is σ = 1088208. Its totient is φ = 893760.

The previous prime is 990313. The next prime is 990323. The reversal of 990319 is 913099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 990319 - 2⁵ = 990287 is a prime.

It is a super-2 number, since 2×990319² = 1961463443522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990313) 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 7 ways as a sum of consecutive naturals, for example, 1939 + ... + 2395.

It is an arithmetic number, because the mean of its divisors is an integer number (136026).

2⁹⁹⁰³¹⁹ is an apocalyptic number.

990319 is a deficient number, since it is larger than the sum of its proper divisors (97889).

990319 is a wasteful number, since it uses less digits than its factorization.

990319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 990319 is about 995.1477277269. The cubic root of 990319 is about 99.6762530100.

The spelling of 990319 in words is "nine hundred ninety thousand, three hundred nineteen".