724260247 has 2 divisors, whose sum is σ = 724260248. Its totient is φ = 724260246.

The previous prime is 724260217. The next prime is 724260269. The reversal of 724260247 is 742062427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 724260247 - 2¹⁵ = 724227479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724260217) 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, 362130123 + 362130124.

It is an arithmetic number, because the mean of its divisors is an integer number (362130124).

Almost surely, 2^724260247 is an apocalyptic number.

724260247 is a deficient number, since it is larger than the sum of its proper divisors (1).

724260247 is an equidigital number, since it uses as much as digits as its factorization.

724260247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 724260247 is about 26912.0836614336. The cubic root of 724260247 is about 898.0452417919.

The spelling of 724260247 in words is "seven hundred twenty-four million, two hundred sixty thousand, two hundred forty-seven".