9981330 has 16 divisors (see below), whose sum is σ = 23955264. Its totient is φ = 2661680.

The previous prime is 9981319. The next prime is 9981341. The reversal of 9981330 is 331899.

It is an interprime number because it is at equal distance from previous prime (9981319) and next prime (9981341).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9981291 and 9981300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166326 + ... + 166385.

It is an arithmetic number, because the mean of its divisors is an integer number (1497204).

Almost surely, 2^9981330 is an apocalyptic number.

9981330 is an abundant number, since it is smaller than the sum of its proper divisors (13973934).

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

9981330 is a wasteful number, since it uses less digits than its factorization.

9981330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332721.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 9981330 is about 3159.3242948453. The cubic root of 9981330 is about 215.3093078233.

The spelling of 9981330 in words is "nine million, nine hundred eighty-one thousand, three hundred thirty".