724001 has 2 divisors, whose sum is σ = 724002. Its totient is φ = 724000.

The previous prime is 723997. The next prime is 724007. The reversal of 724001 is 100427.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564001 + 160000 = 751^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 724001 - 2² = 723997 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (724007) 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, 362000 + 362001.

It is an arithmetic number, because the mean of its divisors is an integer number (362001).

2⁷²⁴⁰⁰¹ is an apocalyptic number.

It is an amenable number.

724001 is a deficient number, since it is larger than the sum of its proper divisors (1).

724001 is an equidigital number, since it uses as much as digits as its factorization.

724001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 724001 is about 850.8824830727. The cubic root of 724001 is about 89.7938078048.

Adding to 724001 its reverse (100427), we get a palindrome (824428).

The spelling of 724001 in words is "seven hundred twenty-four thousand, one", and thus it is an iban number.