226623643 has 2 divisors, whose sum is σ = 226623644. Its totient is φ = 226623642.

The previous prime is 226623641. The next prime is 226623673. The reversal of 226623643 is 346326622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226623643 - 2¹ = 226623641 is a prime.

Together with 226623641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 226623599 and 226623608.

It is not a weakly prime, because it can be changed into another prime (226623641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113311821 + 113311822.

It is an arithmetic number, because the mean of its divisors is an integer number (113311822).

Almost surely, 2^226623643 is an apocalyptic number.

226623643 is a deficient number, since it is larger than the sum of its proper divisors (1).

226623643 is an equidigital number, since it uses as much as digits as its factorization.

226623643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 34.

The square root of 226623643 is about 15054.0241463869. The cubic root of 226623643 is about 609.6797055414.

The spelling of 226623643 in words is "two hundred twenty-six million, six hundred twenty-three thousand, six hundred forty-three".