222428783 has 2 divisors, whose sum is σ = 222428784. Its totient is φ = 222428782.

The previous prime is 222428777. The next prime is 222428807. The reversal of 222428783 is 387824222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222428783 - 2¹² = 222424687 is a prime.

It is a super-2 number, since 2×222428783² = 98949127013722178, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222428743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111214391 + 111214392.

It is an arithmetic number, because the mean of its divisors is an integer number (111214392).

Almost surely, 2^222428783 is an apocalyptic number.

222428783 is a deficient number, since it is larger than the sum of its proper divisors (1).

222428783 is an equidigital number, since it uses as much as digits as its factorization.

222428783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 38.

The square root of 222428783 is about 14914.0464998605. The cubic root of 222428783 is about 605.8944790801.

The spelling of 222428783 in words is "two hundred twenty-two million, four hundred twenty-eight thousand, seven hundred eighty-three".