990353 has 8 divisors (see below), whose sum is σ = 1219008. Its totient is φ = 783504.

The previous prime is 990349. The next prime is 990359. The reversal of 990353 is 353099.

990353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 990353 - 2² = 990349 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (990359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5351 + ... + 5532.

It is an arithmetic number, because the mean of its divisors is an integer number (152376).

2⁹⁹⁰³⁵³ is an apocalyptic number.

It is an amenable number.

990353 is a deficient number, since it is larger than the sum of its proper divisors (228655).

990353 is a wasteful number, since it uses less digits than its factorization.

990353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10903.

The product of its (nonzero) digits is 3645, while the sum is 29.

The square root of 990353 is about 995.1648104711. The cubic root of 990353 is about 99.6773937043.

The spelling of 990353 in words is "nine hundred ninety thousand, three hundred fifty-three".