9224921 has 2 divisors, whose sum is σ = 9224922. Its totient is φ = 9224920.

The previous prime is 9224911. The next prime is 9224923. The reversal of 9224921 is 1294229.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6056521 + 3168400 = 2461^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 9224921 - 2⁶ = 9224857 is a prime.

Together with 9224923, 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 (9224923) 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 as a sum of consecutive naturals, namely, 4612460 + 4612461.

It is an arithmetic number, because the mean of its divisors is an integer number (4612461).

Almost surely, 2^9224921 is an apocalyptic number.

It is an amenable number.

9224921 is a deficient number, since it is larger than the sum of its proper divisors (1).

9224921 is an equidigital number, since it uses as much as digits as its factorization.

9224921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 9224921 is about 3037.2555045633. The cubic root of 9224921 is about 209.7269391243.

The spelling of 9224921 in words is "nine million, two hundred twenty-four thousand, nine hundred twenty-one".