11923506 has 48 divisors (see below), whose sum is σ = 29749824. Its totient is φ = 3380832.

The previous prime is 11923501. The next prime is 11923517. The reversal of 11923506 is 60532911.

11923506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11923506.

It is not an unprimeable number, because it can be changed into a prime (11923501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21525 + ... + 22071.

It is an arithmetic number, because the mean of its divisors is an integer number (619788).

Almost surely, 2^11923506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11923506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14874912).

11923506 is an abundant number, since it is smaller than the sum of its proper divisors (17826318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11923506 is a wasteful number, since it uses less digits than its factorization.

11923506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 11923506 is about 3453.0430058139. The cubic root of 11923506 is about 228.4553457806.

The spelling of 11923506 in words is "eleven million, nine hundred twenty-three thousand, five hundred six".