11665423 has 8 divisors (see below), whose sum is σ = 14544000. Its totient is φ = 9089880.

The previous prime is 11665403. The next prime is 11665429. The reversal of 11665423 is 32456611.

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 11665423 - 2⁵ = 11665391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11665391 and 11665400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11665429) 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, 75673 + ... + 75826.

It is an arithmetic number, because the mean of its divisors is an integer number (1818000).

Almost surely, 2^11665423 is an apocalyptic number.

11665423 is a deficient number, since it is larger than the sum of its proper divisors (2878577).

11665423 is a wasteful number, since it uses less digits than its factorization.

11665423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151517.

The product of its digits is 4320, while the sum is 28.

The square root of 11665423 is about 3415.4681963093. The cubic root of 11665423 is about 226.7950111763.

The spelling of 11665423 in words is "eleven million, six hundred sixty-five thousand, four hundred twenty-three".