222979697 has 2 divisors, whose sum is σ = 222979698. Its totient is φ = 222979696.

The previous prime is 222979657. The next prime is 222979709. The reversal of 222979697 is 796979222.

222979697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130896481 + 92083216 = 11441^2 + 9596^2 .

It is a cyclic number.

It is not a de Polignac number, because 222979697 - 2⁸ = 222979441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222979657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111489848 + 111489849.

It is an arithmetic number, because the mean of its divisors is an integer number (111489849).

Almost surely, 2^222979697 is an apocalyptic number.

It is an amenable number.

222979697 is a deficient number, since it is larger than the sum of its proper divisors (1).

222979697 is an equidigital number, since it uses as much as digits as its factorization.

222979697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 53.

The square root of 222979697 is about 14932.5047128739. The cubic root of 222979697 is about 606.3942953091.

The spelling of 222979697 in words is "two hundred twenty-two million, nine hundred seventy-nine thousand, six hundred ninety-seven".