990354 has 8 divisors (see below), whose sum is σ = 1980720. Its totient is φ = 330116.

The previous prime is 990349. The next prime is 990359. The reversal of 990354 is 453099.

990354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (990349) and next prime (990359).

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

990354 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 82524 + ... + 82535.

It is an arithmetic number, because the mean of its divisors is an integer number (247590).

2⁹⁹⁰³⁵⁴ is an apocalyptic number.

990354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990354 is a wasteful number, since it uses less digits than its factorization.

990354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165064.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 990354 is about 995.1653129003. The cubic root of 990354 is about 99.6774272537.

The spelling of 990354 in words is "nine hundred ninety thousand, three hundred fifty-four".