222987 has 8 divisors (see below), whose sum is σ = 299520. Its totient is φ = 147560.

The previous prime is 222979. The next prime is 222991. The reversal of 222987 is 789222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222987 - 2³ = 222979 is a prime.

222987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (222947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562 + ... + 872.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2²²²⁹⁸⁷ is an apocalyptic number.

222987 is a deficient number, since it is larger than the sum of its proper divisors (76533).

222987 is a wasteful number, since it uses less digits than its factorization.

222987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its digits is 4032, while the sum is 30.

The square root of 222987 is about 472.2149934087. The cubic root of 222987 is about 60.6400915417.

The spelling of 222987 in words is "two hundred twenty-two thousand, nine hundred eighty-seven".