990736 has 20 divisors (see below), whose sum is σ = 2021200. Its totient is φ = 469152.

The previous prime is 990733. The next prime is 990761. The reversal of 990736 is 637099.

990736 is nontrivially palindromic in base 15.

It is not an unprimeable number, because it can be changed into a prime (990733) 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, 1326 + ... + 1933.

It is an arithmetic number, because the mean of its divisors is an integer number (101060).

2⁹⁹⁰⁷³⁶ is an apocalyptic number.

It is an amenable number.

990736 is an abundant number, since it is smaller than the sum of its proper divisors (1030464).

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

990736 is a wasteful number, since it uses less digits than its factorization.

990736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286 (or 3280 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 990736 is about 995.3572223076. The cubic root of 990736 is about 99.6902414874.

The spelling of 990736 in words is "nine hundred ninety thousand, seven hundred thirty-six".