724665707 has 2 divisors, whose sum is σ = 724665708. Its totient is φ = 724665706.

The previous prime is 724665701. The next prime is 724665709. The reversal of 724665707 is 707566427.

724665707 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 is an emirp because it is prime and its reverse (707566427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724665707 - 2⁸ = 724665451 is a prime.

Together with 724665709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (724665701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362332853 + 362332854.

It is an arithmetic number, because the mean of its divisors is an integer number (362332854).

Almost surely, 2^724665707 is an apocalyptic number.

724665707 is a deficient number, since it is larger than the sum of its proper divisors (1).

724665707 is an equidigital number, since it uses as much as digits as its factorization.

724665707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 724665707 is about 26919.6156547600. The cubic root of 724665707 is about 898.2127936712.

The spelling of 724665707 in words is "seven hundred twenty-four million, six hundred sixty-five thousand, seven hundred seven".