999632 has 10 divisors (see below), whose sum is σ = 1936818. Its totient is φ = 499808.

The previous prime is 999631. The next prime is 999653. The reversal of 999632 is 236999.

It can be written as a sum of positive squares in only one way, i.e., 712336 + 287296 = 844^2 + 536^2 .

It is a nialpdrome in base 10.

It is a zygodrome in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 999632.

It is not an unprimeable number, because it can be changed into a prime (999631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31223 + ... + 31254.

2⁹⁹⁹⁶³² is an apocalyptic number.

It is an amenable number.

999632 is a deficient number, since it is larger than the sum of its proper divisors (937186).

999632 is a wasteful number, since it uses less digits than its factorization.

999632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62485 (or 62479 counting only the distinct ones).

The product of its digits is 26244, while the sum is 38.

The square root of 999632 is about 999.8159830689. The cubic root of 999632 is about 99.9877318283.

The spelling of 999632 in words is "nine hundred ninety-nine thousand, six hundred thirty-two".