11724013 has 8 divisors (see below), whose sum is σ = 13436928. Its totient is φ = 10020624.

The previous prime is 11724001. The next prime is 11724127. The reversal of 11724013 is 31042711.

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 11724013 - 2⁵ = 11723981 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 (11724313) 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, 495 + ... + 4867.

It is an arithmetic number, because the mean of its divisors is an integer number (1679616).

Almost surely, 2^11724013 is an apocalyptic number.

It is an amenable number.

11724013 is a deficient number, since it is larger than the sum of its proper divisors (1712915).

11724013 is an equidigital number, since it uses as much as digits as its factorization.

11724013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11724013 is about 3424.0346084700. The cubic root of 11724013 is about 227.1740725906.

Adding to 11724013 its reverse (31042711), we get a palindrome (42766724).

The spelling of 11724013 in words is "eleven million, seven hundred twenty-four thousand, thirteen".