11972423 has 4 divisors (see below), whose sum is σ = 12296040. Its totient is φ = 11648808.

The previous prime is 11972407. The next prime is 11972459. The reversal of 11972423 is 32427911.

11972423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11972423 - 2⁴ = 11972407 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 (11972473) 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, 161753 + ... + 161826.

It is an arithmetic number, because the mean of its divisors is an integer number (3074010).

Almost surely, 2^11972423 is an apocalyptic number.

11972423 is a deficient number, since it is larger than the sum of its proper divisors (323617).

11972423 is an equidigital number, since it uses as much as digits as its factorization.

11972423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323616.

The product of its digits is 3024, while the sum is 29.

The square root of 11972423 is about 3460.1189285919. The cubic root of 11972423 is about 228.7673374141.

The spelling of 11972423 in words is "eleven million, nine hundred seventy-two thousand, four hundred twenty-three".