222623743 has 4 divisors (see below), whose sum is σ = 222719320. Its totient is φ = 222528168.

The previous prime is 222623719. The next prime is 222623773. The reversal of 222623743 is 347326222.

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 222623743 - 2¹⁷ = 222492671 is a prime.

It is a super-2 number, since 2×222623743² = 99122661894660098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222623773) 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, 44205 + ... + 48982.

It is an arithmetic number, because the mean of its divisors is an integer number (55679830).

Almost surely, 2^222623743 is an apocalyptic number.

222623743 is a deficient number, since it is larger than the sum of its proper divisors (95577).

222623743 is an equidigital number, since it uses as much as digits as its factorization.

222623743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95576.

The product of its digits is 24192, while the sum is 31.

The square root of 222623743 is about 14920.5811884122. The cubic root of 222623743 is about 606.0714506189.

Adding to 222623743 its reverse (347326222), we get a palindrome (569949965).

The spelling of 222623743 in words is "two hundred twenty-two million, six hundred twenty-three thousand, seven hundred forty-three".