9327981 has 8 divisors (see below), whose sum is σ = 13394080. Its totient is φ = 5740272.

The previous prime is 9327973. The next prime is 9328003. The reversal of 9327981 is 1897239.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9327981 - 2³ = 9327973 is a prime.

It is a super-2 number, since 2×9327981² = 174022459072722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 239179 = 9327981 / (9 + 3 + 2 + 7 + 9 + 8 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9327961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119551 + ... + 119628.

It is an arithmetic number, because the mean of its divisors is an integer number (1674260).

Almost surely, 2^9327981 is an apocalyptic number.

It is an amenable number.

9327981 is a deficient number, since it is larger than the sum of its proper divisors (4066099).

9327981 is a wasteful number, since it uses less digits than its factorization.

9327981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239195.

The product of its digits is 27216, while the sum is 39.

The square root of 9327981 is about 3054.1743565160. The cubic root of 9327981 is about 210.5050654856.

The spelling of 9327981 in words is "nine million, three hundred twenty-seven thousand, nine hundred eighty-one".