222643783 has 2 divisors, whose sum is σ = 222643784. Its totient is φ = 222643782.

The previous prime is 222643739. The next prime is 222643789. The reversal of 222643783 is 387346222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222643783 - 2²¹ = 220546631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222643789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111321891 + 111321892.

It is an arithmetic number, because the mean of its divisors is an integer number (111321892).

Almost surely, 2^222643783 is an apocalyptic number.

222643783 is a deficient number, since it is larger than the sum of its proper divisors (1).

222643783 is an equidigital number, since it uses as much as digits as its factorization.

222643783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 37.

The square root of 222643783 is about 14921.2527289099. The cubic root of 222643783 is about 606.0896357224.

The spelling of 222643783 in words is "two hundred twenty-two million, six hundred forty-three thousand, seven hundred eighty-three".