11443427 has 4 divisors (see below), whose sum is σ = 11474976. Its totient is φ = 11411880.

The previous prime is 11443409. The next prime is 11443441. The reversal of 11443427 is 72434411.

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 11443427 - 2¹² = 11439331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11443396 and 11443405.

It is not an unprimeable number, because it can be changed into a prime (11443457) 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, 15224 + ... + 15957.

It is an arithmetic number, because the mean of its divisors is an integer number (2868744).

Almost surely, 2^11443427 is an apocalyptic number.

11443427 is a deficient number, since it is larger than the sum of its proper divisors (31549).

11443427 is an equidigital number, since it uses as much as digits as its factorization.

11443427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31548.

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

The square root of 11443427 is about 3382.8134740183. The cubic root of 11443427 is about 225.3471316570.

Adding to 11443427 its reverse (72434411), we get a palindrome (83877838).

The spelling of 11443427 in words is "eleven million, four hundred forty-three thousand, four hundred twenty-seven".