11923567 has 4 divisors (see below), whose sum is σ = 11932920. Its totient is φ = 11914216.

The previous prime is 11923543. The next prime is 11923603. The reversal of 11923567 is 76532911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11923567 - 2¹¹ = 11921519 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 (11923517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2392 + ... + 5437.

It is an arithmetic number, because the mean of its divisors is an integer number (2983230).

Almost surely, 2^11923567 is an apocalyptic number.

11923567 is a deficient number, since it is larger than the sum of its proper divisors (9353).

11923567 is an equidigital number, since it uses as much as digits as its factorization.

11923567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352.

The product of its digits is 11340, while the sum is 34.

The square root of 11923567 is about 3453.0518385915. The cubic root of 11923567 is about 228.4557353683.

The spelling of 11923567 in words is "eleven million, nine hundred twenty-three thousand, five hundred sixty-seven".