9392921 has 2 divisors, whose sum is σ = 9392922. Its totient is φ = 9392920.

The previous prime is 9392917. The next prime is 9392923. The reversal of 9392921 is 1292939.

9392921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 151321 = 3040^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 9392921 - 2² = 9392917 is a prime.

Together with 9392923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9392923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4696460 + 4696461.

It is an arithmetic number, because the mean of its divisors is an integer number (4696461).

Almost surely, 2^9392921 is an apocalyptic number.

It is an amenable number.

9392921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9392921 is an equidigital number, since it uses as much as digits as its factorization.

9392921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 35.

The square root of 9392921 is about 3064.7872683108. The cubic root of 9392921 is about 210.9924377545.

The spelling of 9392921 in words is "nine million, three hundred ninety-two thousand, nine hundred twenty-one".