11838427 has 4 divisors (see below), whose sum is σ = 11899960. Its totient is φ = 11776896.

The previous prime is 11838413. The next prime is 11838433. The reversal of 11838427 is 72483811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11838427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11838392 and 11838401.

It is not an unprimeable number, because it can be changed into a prime (11838457) 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, 30477 + ... + 30862.

It is an arithmetic number, because the mean of its divisors is an integer number (2974990).

Almost surely, 2^11838427 is an apocalyptic number.

11838427 is a deficient number, since it is larger than the sum of its proper divisors (61533).

11838427 is an equidigital number, since it uses as much as digits as its factorization.

11838427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61532.

The product of its digits is 10752, while the sum is 34.

The square root of 11838427 is about 3440.7015273052. The cubic root of 11838427 is about 227.9106747145.

The spelling of 11838427 in words is "eleven million, eight hundred thirty-eight thousand, four hundred twenty-seven".