999899932 has 24 divisors (see below), whose sum is σ = 1815453360. Its totient is φ = 481299840.

The previous prime is 999899911. The next prime is 999899933. The reversal of 999899932 is 239998999.

It is a happy number.

999899932 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999899933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27832 + ... + 52672.

It is an arithmetic number, because the mean of its divisors is an integer number (75643890).

Almost surely, 2^999899932 is an apocalyptic number.

It is an amenable number.

999899932 is a deficient number, since it is larger than the sum of its proper divisors (815553428).

999899932 is a wasteful number, since it uses less digits than its factorization.

999899932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25221 (or 25219 counting only the distinct ones).

The product of its digits is 25509168, while the sum is 67.

The square root of 999899932 is about 31621.1943480951. The cubic root of 999899932 is about 999.9666428873.

The spelling of 999899932 in words is "nine hundred ninety-nine million, eight hundred ninety-nine thousand, nine hundred thirty-two".