999685232 has 80 divisors (see below), whose sum is σ = 2400179712. Its totient is φ = 392774400.

The previous prime is 999685231. The next prime is 999685237. The reversal of 999685232 is 232586999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999685231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217583 + ... + 222129.

Almost surely, 2^999685232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999685232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200089856).

999685232 is an abundant number, since it is smaller than the sum of its proper divisors (1400494480).

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

999685232 is a wasteful number, since it uses less digits than its factorization.

999685232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726 (or 4720 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 53.

The square root of 999685232 is about 31617.7992909057. The cubic root of 999685232 is about 999.8950663226.

The spelling of 999685232 in words is "nine hundred ninety-nine million, six hundred eighty-five thousand, two hundred thirty-two".