990683 has 8 divisors (see below), whose sum is σ = 1031856. Its totient is φ = 950400.

The previous prime is 990673. The next prime is 990707. The reversal of 990683 is 386099.

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 990683 - 2¹⁶ = 925147 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 990683.

It is not an unprimeable number, because it can be changed into a prime (990643) 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, 2828 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (128982).

2⁹⁹⁰⁶⁸³ is an apocalyptic number.

990683 is a deficient number, since it is larger than the sum of its proper divisors (41173).

990683 is a wasteful number, since it uses less digits than its factorization.

990683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 990683 is about 995.3305983441. The cubic root of 990683 is about 99.6884637931.

The spelling of 990683 in words is "nine hundred ninety thousand, six hundred eighty-three".