724407679 has 2 divisors, whose sum is σ = 724407680. Its totient is φ = 724407678.

The previous prime is 724407667. The next prime is 724407683. The reversal of 724407679 is 976704427.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724407679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724407479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362203839 + 362203840.

It is an arithmetic number, because the mean of its divisors is an integer number (362203840).

Almost surely, 2^724407679 is an apocalyptic number.

724407679 is a deficient number, since it is larger than the sum of its proper divisors (1).

724407679 is an equidigital number, since it uses as much as digits as its factorization.

724407679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 46.

The square root of 724407679 is about 26914.8226633578. The cubic root of 724407679 is about 898.1061736755.

The spelling of 724407679 in words is "seven hundred twenty-four million, four hundred seven thousand, six hundred seventy-nine".