724679 has 8 divisors (see below), whose sum is σ = 781440. Its totient is φ = 669816.

The previous prime is 724651. The next prime is 724721. The reversal of 724679 is 976427.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-724679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374 + ... + 1260.

It is an arithmetic number, because the mean of its divisors is an integer number (97680).

2⁷²⁴⁶⁷⁹ is an apocalyptic number.

724679 is a deficient number, since it is larger than the sum of its proper divisors (56761).

724679 is a wasteful number, since it uses less digits than its factorization.

724679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949.

The product of its digits is 21168, while the sum is 35.

The square root of 724679 is about 851.2807997365. The cubic root of 724679 is about 89.8218285799.

The spelling of 724679 in words is "seven hundred twenty-four thousand, six hundred seventy-nine".