224989643 has 2 divisors, whose sum is σ = 224989644. Its totient is φ = 224989642.

The previous prime is 224989613. The next prime is 224989663. The reversal of 224989643 is 346989422.

224989643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224989643 - 2⁶ = 224989579 is a prime.

It is not a weakly prime, because it can be changed into another prime (224989603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112494821 + 112494822.

It is an arithmetic number, because the mean of its divisors is an integer number (112494822).

Almost surely, 2^224989643 is an apocalyptic number.

224989643 is a deficient number, since it is larger than the sum of its proper divisors (1).

224989643 is an equidigital number, since it uses as much as digits as its factorization.

224989643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 47.

The square root of 224989643 is about 14999.6547626937. The cubic root of 224989643 is about 608.2108670636.

The spelling of 224989643 in words is "two hundred twenty-four million, nine hundred eighty-nine thousand, six hundred forty-three".