224774729 has 2 divisors, whose sum is σ = 224774730. Its totient is φ = 224774728.

The previous prime is 224774687. The next prime is 224774761. The reversal of 224774729 is 927477422.

224774729 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 can be written as a sum of positive squares in only one way, i.e., 141015625 + 83759104 = 11875^2 + 9152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224774729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 224774729.

It is not a weakly prime, because it can be changed into another prime (224774789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112387364 + 112387365.

It is an arithmetic number, because the mean of its divisors is an integer number (112387365).

Almost surely, 2^224774729 is an apocalyptic number.

It is an amenable number.

224774729 is a deficient number, since it is larger than the sum of its proper divisors (1).

224774729 is an equidigital number, since it uses as much as digits as its factorization.

224774729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 44.

The square root of 224774729 is about 14992.4890862058. The cubic root of 224774729 is about 608.0171475211.

The spelling of 224774729 in words is "two hundred twenty-four million, seven hundred seventy-four thousand, seven hundred twenty-nine".