724004 has 6 divisors (see below), whose sum is σ = 1267014. Its totient is φ = 362000.

The previous prime is 724001. The next prime is 724007. The reversal of 724004 is 400427.

It is an interprime number because it is at equal distance from previous prime (724001) and next prime (724007).

It can be written as a sum of positive squares in only one way, i.e., 719104 + 4900 = 848^2 + 70^2 .

It is not an unprimeable number, because it can be changed into a prime (724001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90497 + ... + 90504.

It is an arithmetic number, because the mean of its divisors is an integer number (211169).

2⁷²⁴⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

724004 is a deficient number, since it is larger than the sum of its proper divisors (543010).

724004 is a wasteful number, since it uses less digits than its factorization.

724004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181005 (or 181003 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 724004 is about 850.8842459465. The cubic root of 724004 is about 89.7939318290.

The spelling of 724004 in words is "seven hundred twenty-four thousand, four", and thus it is an iban number.