999332 has 6 divisors (see below), whose sum is σ = 1748838. Its totient is φ = 499664.

The previous prime is 999331. The next prime is 999359. The reversal of 999332 is 233999.

It can be written as a sum of positive squares in only one way, i.e., 678976 + 320356 = 824^2 + 566^2 .

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 999292 and 999301.

It is not an unprimeable number, because it can be changed into a prime (999331) 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 as a sum of consecutive naturals, namely, 124913 + ... + 124920.

It is an arithmetic number, because the mean of its divisors is an integer number (291473).

2⁹⁹⁹³³² is an apocalyptic number.

It is an amenable number.

999332 is a deficient number, since it is larger than the sum of its proper divisors (749506).

999332 is a wasteful number, since it uses less digits than its factorization.

999332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249837 (or 249835 counting only the distinct ones).

The product of its digits is 13122, while the sum is 35.

The square root of 999332 is about 999.6659442034. The cubic root of 999332 is about 99.9777283734.

It can be divided in two parts, 999 and 332, that added together give a palindrome (1331).

The spelling of 999332 in words is "nine hundred ninety-nine thousand, three hundred thirty-two".