220959667 has 2 divisors, whose sum is σ = 220959668. Its totient is φ = 220959666.

The previous prime is 220959647. The next prime is 220959679. The reversal of 220959667 is 766959022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220959667 - 2¹⁵ = 220926899 is a prime.

It is not a weakly prime, because it can be changed into another prime (220959637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110479833 + 110479834.

It is an arithmetic number, because the mean of its divisors is an integer number (110479834).

Almost surely, 2^220959667 is an apocalyptic number.

220959667 is a deficient number, since it is larger than the sum of its proper divisors (1).

220959667 is an equidigital number, since it uses as much as digits as its factorization.

220959667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 220959667 is about 14864.7121398297. The cubic root of 220959667 is about 604.5575774174.

The spelling of 220959667 in words is "two hundred twenty million, nine hundred fifty-nine thousand, six hundred sixty-seven".