235664321 has 2 divisors, whose sum is σ = 235664322. Its totient is φ = 235664320.

The previous prime is 235664311. The next prime is 235664329. The reversal of 235664321 is 123466532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120209296 + 115455025 = 10964^2 + 10745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235664321 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235664329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117832160 + 117832161.

It is an arithmetic number, because the mean of its divisors is an integer number (117832161).

Almost surely, 2^235664321 is an apocalyptic number.

It is an amenable number.

235664321 is a deficient number, since it is larger than the sum of its proper divisors (1).

235664321 is an equidigital number, since it uses as much as digits as its factorization.

235664321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 235664321 is about 15351.3621871155. The cubic root of 235664321 is about 617.6815256339.

The spelling of 235664321 in words is "two hundred thirty-five million, six hundred sixty-four thousand, three hundred twenty-one".