9337981 has 8 divisors (see below), whose sum is σ = 9976824. Its totient is φ = 8709120.

The previous prime is 9337973. The next prime is 9338011. The reversal of 9337981 is 1897339.

It can be written as a sum of positive squares in 4 ways, for example, as 1863225 + 7474756 = 1365^2 + 2734^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9337981 - 2³ = 9337973 is a prime.

It is a super-2 number, since 2×9337981² = 174395778312722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9337901) 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, 510 + ... + 4351.

It is an arithmetic number, because the mean of its divisors is an integer number (1247103).

Almost surely, 2^9337981 is an apocalyptic number.

It is an amenable number.

9337981 is a deficient number, since it is larger than the sum of its proper divisors (638843).

9337981 is a wasteful number, since it uses less digits than its factorization.

9337981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991.

The product of its digits is 40824, while the sum is 40.

The square root of 9337981 is about 3055.8110216438. The cubic root of 9337981 is about 210.5802621391.

The spelling of 9337981 in words is "nine million, three hundred thirty-seven thousand, nine hundred eighty-one".