724424663 has 2 divisors, whose sum is σ = 724424664. Its totient is φ = 724424662.

The previous prime is 724424653. The next prime is 724424681. The reversal of 724424663 is 366424427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 724424663 - 2¹⁶ = 724359127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724424653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362212331 + 362212332.

It is an arithmetic number, because the mean of its divisors is an integer number (362212332).

Almost surely, 2^724424663 is an apocalyptic number.

724424663 is a deficient number, since it is larger than the sum of its proper divisors (1).

724424663 is an equidigital number, since it uses as much as digits as its factorization.

724424663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 38.

The square root of 724424663 is about 26915.1381753838. The cubic root of 724424663 is about 898.1131924286.

The spelling of 724424663 in words is "seven hundred twenty-four million, four hundred twenty-four thousand, six hundred sixty-three".