11427443 has 4 divisors (see below), whose sum is σ = 11540688. Its totient is φ = 11314200.

The previous prime is 11427433. The next prime is 11427463. The reversal of 11427443 is 34472411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34472411 = 101 ⋅341311.

It is a cyclic number.

It is not a de Polignac number, because 11427443 - 2⁸ = 11427187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11427433) 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, 56471 + ... + 56672.

It is an arithmetic number, because the mean of its divisors is an integer number (2885172).

Almost surely, 2^11427443 is an apocalyptic number.

11427443 is a deficient number, since it is larger than the sum of its proper divisors (113245).

11427443 is a wasteful number, since it uses less digits than its factorization.

11427443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113244.

The product of its digits is 2688, while the sum is 26.

The square root of 11427443 is about 3380.4501179577. The cubic root of 11427443 is about 225.2421623180.

Adding to 11427443 its reverse (34472411), we get a palindrome (45899854).

The spelling of 11427443 in words is "eleven million, four hundred twenty-seven thousand, four hundred forty-three".