222023789 has 4 divisors (see below), whose sum is σ = 239102556. Its totient is φ = 204945024.

The previous prime is 222023783. The next prime is 222023801. The reversal of 222023789 is 987320222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150062500 + 71961289 = 12250^2 + 8483^2 .

It is a cyclic number.

It is not a de Polignac number, because 222023789 - 2⁴ = 222023773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222023783) 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, 8539364 + ... + 8539389.

It is an arithmetic number, because the mean of its divisors is an integer number (59775639).

Almost surely, 2^222023789 is an apocalyptic number.

It is an amenable number.

222023789 is a deficient number, since it is larger than the sum of its proper divisors (17078767).

222023789 is a wasteful number, since it uses less digits than its factorization.

222023789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17078766.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 222023789 is about 14900.4627109362. The cubic root of 222023789 is about 605.5265220407.

The spelling of 222023789 in words is "two hundred twenty-two million, twenty-three thousand, seven hundred eighty-nine".