9921337 has 2 divisors, whose sum is σ = 9921338. Its totient is φ = 9921336.

The previous prime is 9921323. The next prime is 9921341. The reversal of 9921337 is 7331299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9174841 + 746496 = 3029^2 + 864^2 .

It is an emirp because it is prime and its reverse (7331299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9921337 - 2¹⁹ = 9397049 is a prime.

It is not a weakly prime, because it can be changed into another prime (9921137) 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 as a sum of consecutive naturals, namely, 4960668 + 4960669.

It is an arithmetic number, because the mean of its divisors is an integer number (4960669).

Almost surely, 2^9921337 is an apocalyptic number.

It is an amenable number.

9921337 is a deficient number, since it is larger than the sum of its proper divisors (1).

9921337 is an equidigital number, since it uses as much as digits as its factorization.

9921337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10206, while the sum is 34.

The square root of 9921337 is about 3149.8153914158. The cubic root of 9921337 is about 214.8770669138.

The spelling of 9921337 in words is "nine million, nine hundred twenty-one thousand, three hundred thirty-seven".