11917423 has 8 divisors (see below), whose sum is σ = 14059520. Its totient is φ = 9885240.

The previous prime is 11917417. The next prime is 11917439. The reversal of 11917423 is 32471911.

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 11917423 - 2¹⁷ = 11786351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11917391 and 11917400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11917403) 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, 27243 + ... + 27676.

It is an arithmetic number, because the mean of its divisors is an integer number (1757440).

Almost surely, 2^11917423 is an apocalyptic number.

11917423 is a deficient number, since it is larger than the sum of its proper divisors (2142097).

11917423 is an equidigital number, since it uses as much as digits as its factorization.

11917423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54957.

The product of its digits is 1512, while the sum is 28.

The square root of 11917423 is about 3452.1620761488. The cubic root of 11917423 is about 228.4164889136.

The spelling of 11917423 in words is "eleven million, nine hundred seventeen thousand, four hundred twenty-three".