11747427 has 4 divisors (see below), whose sum is σ = 15663240. Its totient is φ = 7831616.

The previous prime is 11747413. The next prime is 11747429. The reversal of 11747427 is 72474711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72474711 = 3 ⋅24158237.

It is a cyclic number.

It is not a de Polignac number, because 11747427 - 2¹¹ = 11745379 is a prime.

It is a super-2 number, since 2×11747427² = 276004082240658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11747429) 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, 1957902 + ... + 1957907.

It is an arithmetic number, because the mean of its divisors is an integer number (3915810).

Almost surely, 2^11747427 is an apocalyptic number.

11747427 is a deficient number, since it is larger than the sum of its proper divisors (3915813).

11747427 is an equidigital number, since it uses as much as digits as its factorization.

11747427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915812.

The product of its digits is 10976, while the sum is 33.

The square root of 11747427 is about 3427.4519690289. The cubic root of 11747427 is about 227.3252016386.

The spelling of 11747427 in words is "eleven million, seven hundred forty-seven thousand, four hundred twenty-seven".