223861427 has 2 divisors, whose sum is σ = 223861428. Its totient is φ = 223861426.

The previous prime is 223861409. The next prime is 223861459. The reversal of 223861427 is 724168322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223861427 - 2⁸ = 223861171 is a prime.

It is a super-3 number, since 3×223861427³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (223869427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111930713 + 111930714.

It is an arithmetic number, because the mean of its divisors is an integer number (111930714).

Almost surely, 2^223861427 is an apocalyptic number.

223861427 is a deficient number, since it is larger than the sum of its proper divisors (1).

223861427 is an equidigital number, since it uses as much as digits as its factorization.

223861427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 35.

The square root of 223861427 is about 14961.9994318941. Note that the first 3 decimals coincide. The cubic root of 223861427 is about 607.1925336477.

The spelling of 223861427 in words is "two hundred twenty-three million, eight hundred sixty-one thousand, four hundred twenty-seven".