232321393 has 2 divisors, whose sum is σ = 232321394. Its totient is φ = 232321392.

The previous prime is 232321381. The next prime is 232321421. The reversal of 232321393 is 393123232.

It is a happy number.

It is an a-pointer prime, because the next prime (232321421) can be obtained adding 232321393 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141538609 + 90782784 = 11897^2 + 9528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232321393 is a prime.

It is not a weakly prime, because it can be changed into another prime (232321363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116160696 + 116160697.

It is an arithmetic number, because the mean of its divisors is an integer number (116160697).

Almost surely, 2^232321393 is an apocalyptic number.

It is an amenable number.

232321393 is a deficient number, since it is larger than the sum of its proper divisors (1).

232321393 is an equidigital number, since it uses as much as digits as its factorization.

232321393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 28.

The square root of 232321393 is about 15242.0928024993. The cubic root of 232321393 is about 614.7469759157.

It can be divided in two parts, 2323 and 21393, that added together give a square (23716 = 154²).

The spelling of 232321393 in words is "two hundred thirty-two million, three hundred twenty-one thousand, three hundred ninety-three".