9240921 has 12 divisors (see below), whose sum is σ = 13600548. Its totient is φ = 6044064.

The previous prime is 9240919. The next prime is 9240923. The reversal of 9240921 is 1290429.

It is an interprime number because it is at equal distance from previous prime (9240919) and next prime (9240923).

It can be written as a sum of positive squares in 2 ways, for example, as 4665600 + 4575321 = 2160^2 + 2139^2 .

It is not a de Polignac number, because 9240921 - 2¹ = 9240919 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9240923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9210 + ... + 10163.

It is an arithmetic number, because the mean of its divisors is an integer number (1133379).

Almost surely, 2^9240921 is an apocalyptic number.

It is an amenable number.

9240921 is a deficient number, since it is larger than the sum of its proper divisors (4359627).

9240921 is a wasteful number, since it uses less digits than its factorization.

9240921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19432 (or 19429 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 9240921 is about 3039.8883203170. Note that the first 3 decimals coincide. The cubic root of 9240921 is about 209.8481214757.

The spelling of 9240921 in words is "nine million, two hundred forty thousand, nine hundred twenty-one".