222842623 has 2 divisors, whose sum is σ = 222842624. Its totient is φ = 222842622.

The previous prime is 222842597. The next prime is 222842689. The reversal of 222842623 is 326248222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222842623 - 2⁹ = 222842111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222842023) 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, 111421311 + 111421312.

It is an arithmetic number, because the mean of its divisors is an integer number (111421312).

Almost surely, 2^222842623 is an apocalyptic number.

222842623 is a deficient number, since it is larger than the sum of its proper divisors (1).

222842623 is an equidigital number, since it uses as much as digits as its factorization.

222842623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

The square root of 222842623 is about 14927.9142213506. The cubic root of 222842623 is about 606.2700120506.

The spelling of 222842623 in words is "two hundred twenty-two million, eight hundred forty-two thousand, six hundred twenty-three".