222666673 has 4 divisors (see below), whose sum is σ = 225349488. Its totient is φ = 219983860.

The previous prime is 222666671. The next prime is 222666677. The reversal of 222666673 is 376666222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222666673 - 2¹ = 222666671 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222666671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1341283 + ... + 1341448.

It is an arithmetic number, because the mean of its divisors is an integer number (56337372).

Almost surely, 2^222666673 is an apocalyptic number.

It is an amenable number.

222666673 is a deficient number, since it is larger than the sum of its proper divisors (2682815).

222666673 is an equidigital number, since it uses as much as digits as its factorization.

222666673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682814.

The product of its digits is 217728, while the sum is 40.

The square root of 222666673 is about 14922.0197359473. The cubic root of 222666673 is about 606.1104056958.

The spelling of 222666673 in words is "two hundred twenty-two million, six hundred sixty-six thousand, six hundred seventy-three".