224704639 has 2 divisors, whose sum is σ = 224704640. Its totient is φ = 224704638.

The previous prime is 224704591. The next prime is 224704717. The reversal of 224704639 is 936407422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 224704639 - 2⁷ = 224704511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224704598 and 224704607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224704939) 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, 112352319 + 112352320.

It is an arithmetic number, because the mean of its divisors is an integer number (112352320).

Almost surely, 2^224704639 is an apocalyptic number.

224704639 is a deficient number, since it is larger than the sum of its proper divisors (1).

224704639 is an equidigital number, since it uses as much as digits as its factorization.

224704639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 224704639 is about 14990.1514001694. The cubic root of 224704639 is about 607.9539429779.

The spelling of 224704639 in words is "two hundred twenty-four million, seven hundred four thousand, six hundred thirty-nine".