990346 has 16 divisors (see below), whose sum is σ = 1714176. Its totient is φ = 420336.

The previous prime is 990331. The next prime is 990349. The reversal of 990346 is 643099.

990346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (990349) 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, 1500 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (107136).

2⁹⁹⁰³⁴⁶ is an apocalyptic number.

990346 is a deficient number, since it is larger than the sum of its proper divisors (723830).

990346 is a wasteful number, since it uses less digits than its factorization.

990346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 990346 is about 995.1612934595. The cubic root of 990346 is about 99.6771588576.

The spelling of 990346 in words is "nine hundred ninety thousand, three hundred forty-six".