11722399 has 8 divisors (see below), whose sum is σ = 12653312. Its totient is φ = 10795680.

The previous prime is 11722397. The next prime is 11722421. The reversal of 11722399 is 99322711.

It is a happy number.

11722399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11722399 - 2¹ = 11722397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11722391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7234 + ... + 8704.

It is an arithmetic number, because the mean of its divisors is an integer number (1581664).

Almost surely, 2^11722399 is an apocalyptic number.

11722399 is a deficient number, since it is larger than the sum of its proper divisors (930913).

11722399 is a wasteful number, since it uses less digits than its factorization.

11722399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its digits is 6804, while the sum is 34.

The square root of 11722399 is about 3423.7989134878. The cubic root of 11722399 is about 227.1636473838.

It can be divided in two parts, 11722 and 399, that added together give a palindrome (12121).

The spelling of 11722399 in words is "eleven million, seven hundred twenty-two thousand, three hundred ninety-nine".