9337921 has 4 divisors (see below), whose sum is σ = 9423700. Its totient is φ = 9252144.

The previous prime is 9337907. The next prime is 9337927. The reversal of 9337921 is 1297339.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1297339 = 19 ⋅68281.

It can be written as a sum of positive squares in 2 ways, for example, as 5574321 + 3763600 = 2361^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 9337921 - 2²¹ = 7240769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9337927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42726 + ... + 42943.

It is an arithmetic number, because the mean of its divisors is an integer number (2355925).

Almost surely, 2^9337921 is an apocalyptic number.

It is an amenable number.

9337921 is a deficient number, since it is larger than the sum of its proper divisors (85779).

9337921 is a wasteful number, since it uses less digits than its factorization.

9337921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85778.

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

The square root of 9337921 is about 3055.8012042671. The cubic root of 9337921 is about 210.5798111194.

The spelling of 9337921 in words is "nine million, three hundred thirty-seven thousand, nine hundred twenty-one".