990273 has 16 divisors (see below), whose sum is σ = 1382976. Its totient is φ = 629760.

The previous prime is 990259. The next prime is 990277. The reversal of 990273 is 372099.

It is not a de Polignac number, because 990273 - 2⁹ = 989761 is a prime.

It is a super-2 number, since 2×990273² = 1961281229058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 990273.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990273.

It is not an unprimeable number, because it can be changed into a prime (990277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10161 + ... + 10257.

It is an arithmetic number, because the mean of its divisors is an integer number (86436).

2⁹⁹⁰²⁷³ is an apocalyptic number.

It is an amenable number.

990273 is a deficient number, since it is larger than the sum of its proper divisors (392703).

990273 is a wasteful number, since it uses less digits than its factorization.

990273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 990273 is about 995.1246153121. The cubic root of 990273 is about 99.6747096761.

The spelling of 990273 in words is "nine hundred ninety thousand, two hundred seventy-three".