723610241 has 2 divisors, whose sum is σ = 723610242. Its totient is φ = 723610240.

The previous prime is 723610229. The next prime is 723610289. The reversal of 723610241 is 142016327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470673025 + 252937216 = 21695^2 + 15904^2 .

It is an emirp because it is prime and its reverse (142016327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723610241 is a prime.

It is a super-2 number, since 2×723610241² = 1047223561760156162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 723610241.

It is not a weakly prime, because it can be changed into another prime (723610201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361805120 + 361805121.

It is an arithmetic number, because the mean of its divisors is an integer number (361805121).

Almost surely, 2^723610241 is an apocalyptic number.

It is an amenable number.

723610241 is a deficient number, since it is larger than the sum of its proper divisors (1).

723610241 is an equidigital number, since it uses as much as digits as its factorization.

723610241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 723610241 is about 26900.0044795535. The cubic root of 723610241 is about 897.7765034416.

Adding to 723610241 its reverse (142016327), we get a palindrome (865626568).

The spelling of 723610241 in words is "seven hundred twenty-three million, six hundred ten thousand, two hundred forty-one".