11712943 has 4 divisors (see below), whose sum is σ = 12777768. Its totient is φ = 10648120.

The previous prime is 11712937. The next prime is 11712989. The reversal of 11712943 is 34921711.

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 11712943 - 2⁹ = 11712431 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 (11713943) 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, 532396 + ... + 532417.

It is an arithmetic number, because the mean of its divisors is an integer number (3194442).

Almost surely, 2^11712943 is an apocalyptic number.

11712943 is a deficient number, since it is larger than the sum of its proper divisors (1064825).

11712943 is a wasteful number, since it uses less digits than its factorization.

11712943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064824.

The product of its digits is 1512, while the sum is 28.

The square root of 11712943 is about 3422.4177126704. The cubic root of 11712943 is about 227.1025496144.

It can be divided in two parts, 1171 and 2943, that added together give a palindrome (4114).

The spelling of 11712943 in words is "eleven million, seven hundred twelve thousand, nine hundred forty-three".