222446747 has 2 divisors, whose sum is σ = 222446748. Its totient is φ = 222446746.

The previous prime is 222446729. The next prime is 222446759. The reversal of 222446747 is 747644222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222446747 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222446747.

It is not a weakly prime, because it can be changed into another prime (222446447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111223373 + 111223374.

It is an arithmetic number, because the mean of its divisors is an integer number (111223374).

Almost surely, 2^222446747 is an apocalyptic number.

222446747 is a deficient number, since it is larger than the sum of its proper divisors (1).

222446747 is an equidigital number, since it uses as much as digits as its factorization.

222446747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 38.

The square root of 222446747 is about 14914.6487387400. The cubic root of 222446747 is about 605.9107899119.

The spelling of 222446747 in words is "two hundred twenty-two million, four hundred forty-six thousand, seven hundred forty-seven".