11943743 has 4 divisors (see below), whose sum is σ = 13650000. Its totient is φ = 10237488.

The previous prime is 11943733. The next prime is 11943769. The reversal of 11943743 is 34734911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34734911 = 31 ⋅1120481.

It is a cyclic number.

It is not a de Polignac number, because 11943743 - 2¹⁴ = 11927359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11943703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853118 + ... + 853131.

It is an arithmetic number, because the mean of its divisors is an integer number (3412500).

Almost surely, 2^11943743 is an apocalyptic number.

11943743 is a deficient number, since it is larger than the sum of its proper divisors (1706257).

11943743 is an equidigital number, since it uses as much as digits as its factorization.

11943743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706256.

The product of its digits is 9072, while the sum is 32.

The square root of 11943743 is about 3455.9720774335. The cubic root of 11943743 is about 228.5845202509.

The spelling of 11943743 in words is "eleven million, nine hundred forty-three thousand, seven hundred forty-three".