12404171 has 4 divisors (see below), whose sum is σ = 13358352. Its totient is φ = 11449992.

The previous prime is 12404159. The next prime is 12404191. The reversal of 12404171 is 17140421.

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 12404171 - 2¹⁰ = 12403147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12404191) 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, 477071 + ... + 477096.

It is an arithmetic number, because the mean of its divisors is an integer number (3339588).

Almost surely, 2^12404171 is an apocalyptic number.

12404171 is a deficient number, since it is larger than the sum of its proper divisors (954181).

12404171 is an equidigital number, since it uses as much as digits as its factorization.

12404171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954180.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 12404171 is about 3521.9555647396. The cubic root of 12404171 is about 231.4848545620.

Adding to 12404171 its reverse (17140421), we get a palindrome (29544592).

The spelling of 12404171 in words is "twelve million, four hundred four thousand, one hundred seventy-one".