224768749 has 2 divisors, whose sum is σ = 224768750. Its totient is φ = 224768748.

The previous prime is 224768723. The next prime is 224768777. The reversal of 224768749 is 947867422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141776649 + 82992100 = 11907^2 + 9110^2 .

It is a cyclic number.

It is not a de Polignac number, because 224768749 - 2²¹ = 222671597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224768149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112384374 + 112384375.

It is an arithmetic number, because the mean of its divisors is an integer number (112384375).

Almost surely, 2^224768749 is an apocalyptic number.

It is an amenable number.

224768749 is a deficient number, since it is larger than the sum of its proper divisors (1).

224768749 is an equidigital number, since it uses as much as digits as its factorization.

224768749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 49.

The square root of 224768749 is about 14992.2896516843. The cubic root of 224768749 is about 608.0117554932.

The spelling of 224768749 in words is "two hundred twenty-four million, seven hundred sixty-eight thousand, seven hundred forty-nine".