990532 has 6 divisors (see below), whose sum is σ = 1733438. Its totient is φ = 495264.

The previous prime is 990529. The next prime is 990547. The reversal of 990532 is 235099.

990532 is nontrivially palindromic in base 9.

990532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 746496 + 244036 = 864^2 + 494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 990532.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123813 + ... + 123820.

2⁹⁹⁰⁵³² is an apocalyptic number.

It is an amenable number.

990532 is a deficient number, since it is larger than the sum of its proper divisors (742906).

990532 is a wasteful number, since it uses less digits than its factorization.

990532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247637 (or 247635 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 990532 is about 995.2547412597. The cubic root of 990532 is about 99.6833986940.

The spelling of 990532 in words is "nine hundred ninety thousand, five hundred thirty-two".