999063312 has 80 divisors (see below), whose sum is σ = 2786779968. Its totient is φ = 306593280.

The previous prime is 999063271. The next prime is 999063313. The reversal of 999063312 is 213360999.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (999063313) 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, 260803 + ... + 264605.

Almost surely, 2^999063312 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 999063312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1393389984).

999063312 is an abundant number, since it is smaller than the sum of its proper divisors (1787716656).

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

999063312 is a wasteful number, since it uses less digits than its factorization.

999063312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248 (or 4242 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 42.

The square root of 999063312 is about 31607.9627942074. The cubic root of 999063312 is about 999.6876731287.

The spelling of 999063312 in words is "nine hundred ninety-nine million, sixty-three thousand, three hundred twelve".