923228321 has 2 divisors, whose sum is σ = 923228322. Its totient is φ = 923228320.

The previous prime is 923228279. The next prime is 923228347. The reversal of 923228321 is 123822329.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909685921 + 13542400 = 30161^2 + 3680^2 .

It is an emirp because it is prime and its reverse (123822329) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 923228321 - 2¹⁴ = 923211937 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (923225321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461614160 + 461614161.

It is an arithmetic number, because the mean of its divisors is an integer number (461614161).

Almost surely, 2^923228321 is an apocalyptic number.

It is an amenable number.

923228321 is a deficient number, since it is larger than the sum of its proper divisors (1).

923228321 is an equidigital number, since it uses as much as digits as its factorization.

923228321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 923228321 is about 30384.6724682034. The cubic root of 923228321 is about 973.7251173330.

The spelling of 923228321 in words is "nine hundred twenty-three million, two hundred twenty-eight thousand, three hundred twenty-one".