222647 has 2 divisors, whose sum is σ = 222648. Its totient is φ = 222646.

The previous prime is 222643. The next prime is 222659. The reversal of 222647 is 746222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222647 - 2² = 222643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111323 + 111324.

It is an arithmetic number, because the mean of its divisors is an integer number (111324).

2²²²⁶⁴⁷ is an apocalyptic number.

222647 is a deficient number, since it is larger than the sum of its proper divisors (1).

222647 is an equidigital number, since it uses as much as digits as its factorization.

222647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 23.

The square root of 222647 is about 471.8548505632. The cubic root of 222647 is about 60.6092554856.

Adding to 222647 its reverse (746222), we get a palindrome (968869).

The spelling of 222647 in words is "two hundred twenty-two thousand, six hundred forty-seven".