9984312 has 48 divisors (see below), whose sum is σ = 29123640. Its totient is φ = 3071808.

The previous prime is 9984311. The next prime is 9984347. The reversal of 9984312 is 2134899.

It is a super-2 number, since 2×9984312² = 199372972226688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9984311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4398 + ... + 6269.

Almost surely, 2^9984312 is an apocalyptic number.

It is an amenable number.

9984312 is an abundant number, since it is smaller than the sum of its proper divisors (19139328).

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

9984312 is a wasteful number, since it uses less digits than its factorization.

9984312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692 (or 10685 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 9984312 is about 3159.7961959595. The cubic root of 9984312 is about 215.3307474654.

It can be divided in two parts, 9984 and 312, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 9984312 in words is "nine million, nine hundred eighty-four thousand, three hundred twelve".