724601 has 2 divisors, whose sum is σ = 724602. Its totient is φ = 724600.

The previous prime is 724597. The next prime is 724609. The reversal of 724601 is 106427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 724201 + 400 = 851^2 + 20^2 .

It is an emirp because it is prime and its reverse (106427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724601 - 2² = 724597 is a prime.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 362300 + 362301.

It is an arithmetic number, because the mean of its divisors is an integer number (362301).

2⁷²⁴⁶⁰¹ is an apocalyptic number.

It is an amenable number.

724601 is a deficient number, since it is larger than the sum of its proper divisors (1).

724601 is an equidigital number, since it uses as much as digits as its factorization.

724601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 724601 is about 851.2349851833. The cubic root of 724601 is about 89.8186058408.

The spelling of 724601 in words is "seven hundred twenty-four thousand, six hundred one".