724789613 has 8 divisors (see below), whose sum is σ = 728942688. Its totient is φ = 720648144.

The previous prime is 724789609. The next prime is 724789619. The reversal of 724789613 is 316987427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 724789613 - 2² = 724789609 is a prime.

It is a super-2 number, since 2×724789613² = 1050639966225379538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724789619) 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 in 7 ways as a sum of consecutive naturals, for example, 142370 + ... + 147372.

It is an arithmetic number, because the mean of its divisors is an integer number (91117836).

Almost surely, 2^724789613 is an apocalyptic number.

It is an amenable number.

724789613 is a deficient number, since it is larger than the sum of its proper divisors (4153075).

724789613 is a wasteful number, since it uses less digits than its factorization.

724789613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5803.

The product of its digits is 508032, while the sum is 47.

The square root of 724789613 is about 26921.9169636934. The cubic root of 724789613 is about 898.2639839929.

The spelling of 724789613 in words is "seven hundred twenty-four million, seven hundred eighty-nine thousand, six hundred thirteen".