9992000 has 56 divisors (see below), whose sum is σ = 24765000. Its totient is φ = 3993600.

The previous prime is 9991997. The next prime is 9992009. The reversal of 9992000 is 2999.

It can be written as a sum of positive squares in 4 ways, for example, as 652864 + 9339136 = 808^2 + 3056^2 .

It is a nialpdrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992009) 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, 7376 + ... + 8624.

Almost surely, 2^9992000 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 9992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12382500).

9992000 is an abundant number, since it is smaller than the sum of its proper divisors (14773000).

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

9992000 is a wasteful number, since it uses less digits than its factorization.

9992000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 9992000 is about 3161.0124960209. The cubic root of 9992000 is about 215.3860020842.

Adding to 9992000 its reverse (2999), we get a palindrome (9994999).

The spelling of 9992000 in words is "nine million, nine hundred ninety-two thousand".