11663423 has 8 divisors (see below), whose sum is σ = 12104400. Its totient is φ = 11225088.

The previous prime is 11663417. The next prime is 11663437. The reversal of 11663423 is 32436611.

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

It is not a de Polignac number, because 11663423 - 2⁸ = 11663167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11663392 and 11663401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663413) 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, 14783 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (1513050).

Almost surely, 2^11663423 is an apocalyptic number.

11663423 is a deficient number, since it is larger than the sum of its proper divisors (440977).

11663423 is an equidigital number, since it uses as much as digits as its factorization.

11663423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its digits is 2592, while the sum is 26.

The square root of 11663423 is about 3415.1753981311. The cubic root of 11663423 is about 226.7820493389.

The spelling of 11663423 in words is "eleven million, six hundred sixty-three thousand, four hundred twenty-three".