11638347 has 8 divisors (see below), whose sum is σ = 17734656. Its totient is φ = 6650472.

The previous prime is 11638339. The next prime is 11638349. The reversal of 11638347 is 74383611.

11638347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11638347 - 2³ = 11638339 is a prime.

It is a super-2 number, since 2×11638347² = 270902241784818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (11638349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277083 + ... + 277124.

It is an arithmetic number, because the mean of its divisors is an integer number (2216832).

Almost surely, 2^11638347 is an apocalyptic number.

11638347 is a deficient number, since it is larger than the sum of its proper divisors (6096309).

11638347 is an equidigital number, since it uses as much as digits as its factorization.

11638347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554217.

The product of its digits is 12096, while the sum is 33.

The square root of 11638347 is about 3411.5021618050. The cubic root of 11638347 is about 226.6194079195.

The spelling of 11638347 in words is "eleven million, six hundred thirty-eight thousand, three hundred forty-seven".