999471312 has 300 divisors, whose sum is σ = 3450079776. Its totient is φ = 273611520.

The previous prime is 999471301. The next prime is 999471313. The reversal of 999471312 is 213174999.

999471312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×999471312² = 1997885807022002688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (122472) is a multiple of the sum of its prime factors (216).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999471313) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7629487 + ... + 7629617.

Almost surely, 2^999471312 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 999471312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725039888).

999471312 is an abundant number, since it is smaller than the sum of its proper divisors (2450608464).

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

999471312 is a wasteful number, since it uses less digits than its factorization.

999471312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 172 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 999471312 is about 31614.4162052694. The cubic root of 999471312 is about 999.8237396008.

The spelling of 999471312 in words is "nine hundred ninety-nine million, four hundred seventy-one thousand, three hundred twelve".