222046823 has 4 divisors (see below), whose sum is σ = 229703640. Its totient is φ = 214390008.

The previous prime is 222046819. The next prime is 222046837. The reversal of 222046823 is 328640222.

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

It is a cyclic number.

It is not a de Polignac number, because 222046823 - 2² = 222046819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 7656787 = 222046823 / (2 + 2 + 2 + 0 + 4 + 6 + 8 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222046813) 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, 3828365 + ... + 3828422.

It is an arithmetic number, because the mean of its divisors is an integer number (57425910).

Almost surely, 2^222046823 is an apocalyptic number.

222046823 is a deficient number, since it is larger than the sum of its proper divisors (7656817).

222046823 is an equidigital number, since it uses as much as digits as its factorization.

222046823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656816.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 222046823 is about 14901.2356199075. The cubic root of 222046823 is about 605.5474615620.

The spelling of 222046823 in words is "two hundred twenty-two million, forty-six thousand, eight hundred twenty-three".