232216393 has 2 divisors, whose sum is σ = 232216394. Its totient is φ = 232216392.

The previous prime is 232216337. The next prime is 232216399. The reversal of 232216393 is 393612232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166719744 + 65496649 = 12912^2 + 8093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232216393 is a prime.

It is not a weakly prime, because it can be changed into another prime (232216399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116108196 + 116108197.

It is an arithmetic number, because the mean of its divisors is an integer number (116108197).

Almost surely, 2^232216393 is an apocalyptic number.

It is an amenable number.

232216393 is a deficient number, since it is larger than the sum of its proper divisors (1).

232216393 is an equidigital number, since it uses as much as digits as its factorization.

232216393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 31.

The square root of 232216393 is about 15238.6480043342. The cubic root of 232216393 is about 614.6543482580.

The spelling of 232216393 in words is "two hundred thirty-two million, two hundred sixteen thousand, three hundred ninety-three".