990706 has 8 divisors (see below), whose sum is σ = 1491120. Its totient is φ = 493668.

The previous prime is 990673. The next prime is 990707. The reversal of 990706 is 607099.

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

It is not an unprimeable number, because it can be changed into a prime (990707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (186390).

2⁹⁹⁰⁷⁰⁶ is an apocalyptic number.

990706 is a deficient number, since it is larger than the sum of its proper divisors (500414).

990706 is a wasteful number, since it uses less digits than its factorization.

990706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 990706 is about 995.3421522271. The cubic root of 990706 is about 99.6892352531.

The spelling of 990706 in words is "nine hundred ninety thousand, seven hundred six".