11976243 has 4 divisors (see below), whose sum is σ = 15968328. Its totient is φ = 7984160.

The previous prime is 11976241. The next prime is 11976247. The reversal of 11976243 is 34267911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34267911 = 3 ⋅11422637.

It is a cyclic number.

It is not a de Polignac number, because 11976243 - 2¹ = 11976241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11976241) 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, 1996038 + ... + 1996043.

It is an arithmetic number, because the mean of its divisors is an integer number (3992082).

Almost surely, 2^11976243 is an apocalyptic number.

11976243 is a deficient number, since it is larger than the sum of its proper divisors (3992085).

11976243 is an equidigital number, since it uses as much as digits as its factorization.

11976243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3992084.

The product of its digits is 9072, while the sum is 33.

The square root of 11976243 is about 3460.6708887151. The cubic root of 11976243 is about 228.7916654971.

It can be divided in two parts, 119762 and 43, that added together give a triangular number (119805 = T₄₈₉).

The spelling of 11976243 in words is "eleven million, nine hundred seventy-six thousand, two hundred forty-three".