7217238233 has 2 divisors, whose sum is σ = 7217238234. Its totient is φ = 7217238232.

The previous prime is 7217238209. The next prime is 7217238239. The reversal of 7217238233 is 3328327127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7080885904 + 136352329 = 84148^2 + 11677^2 .

It is a cyclic number.

It is not a de Polignac number, because 7217238233 - 2¹⁸ = 7216976089 is a prime.

It is not a weakly prime, because it can be changed into another prime (7217238239) 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, 3608619116 + 3608619117.

It is an arithmetic number, because the mean of its divisors is an integer number (3608619117).

Almost surely, 2^7217238233 is an apocalyptic number.

It is an amenable number.

7217238233 is a deficient number, since it is larger than the sum of its proper divisors (1).

7217238233 is an equidigital number, since it uses as much as digits as its factorization.

7217238233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 38.

The square root of 7217238233 is about 84954.3302780971. The cubic root of 7217238233 is about 1932.5185901490.

The spelling of 7217238233 in words is "seven billion, two hundred seventeen million, two hundred thirty-eight thousand, two hundred thirty-three".