223694243 has 2 divisors, whose sum is σ = 223694244. Its totient is φ = 223694242.

The previous prime is 223694221. The next prime is 223694281. The reversal of 223694243 is 342496322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223694243 - 2¹⁰ = 223693219 is a prime.

It is a super-2 number, since 2×223694243² = 100078228702686098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223694203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111847121 + 111847122.

It is an arithmetic number, because the mean of its divisors is an integer number (111847122).

Almost surely, 2^223694243 is an apocalyptic number.

223694243 is a deficient number, since it is larger than the sum of its proper divisors (1).

223694243 is an equidigital number, since it uses as much as digits as its factorization.

223694243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 35.

The square root of 223694243 is about 14956.4114345654. The cubic root of 223694243 is about 607.0413416670.

The spelling of 223694243 in words is "two hundred twenty-three million, six hundred ninety-four thousand, two hundred forty-three".