11722369 has 2 divisors, whose sum is σ = 11722370. Its totient is φ = 11722368.

The previous prime is 11722357. The next prime is 11722379. The reversal of 11722369 is 96322711.

11722369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8439025 + 3283344 = 2905^2 + 1812^2 .

It is an emirp because it is prime and its reverse (96322711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11722369 - 2¹⁹ = 11198081 is a prime.

It is a super-2 number, since 2×11722369² = 274827869944322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11722369.

It is not a weakly prime, because it can be changed into another prime (11722379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861184 + 5861185.

It is an arithmetic number, because the mean of its divisors is an integer number (5861185).

Almost surely, 2^11722369 is an apocalyptic number.

It is an amenable number.

11722369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11722369 is an equidigital number, since it uses as much as digits as its factorization.

11722369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 11722369 is about 3423.7945323865. The cubic root of 11722369 is about 227.1634535977.

The spelling of 11722369 in words is "eleven million, seven hundred twenty-two thousand, three hundred sixty-nine".