13427871 has 4 divisors (see below), whose sum is σ = 17903832. Its totient is φ = 8951912.

The previous prime is 13427863. The next prime is 13427917. The reversal of 13427871 is 17872431.

It is a happy number.

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 13427871 - 2³ = 13427863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13427861) 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, 2237976 + ... + 2237981.

It is an arithmetic number, because the mean of its divisors is an integer number (4475958).

Almost surely, 2^13427871 is an apocalyptic number.

13427871 is a deficient number, since it is larger than the sum of its proper divisors (4475961).

13427871 is an equidigital number, since it uses as much as digits as its factorization.

13427871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475960.

The product of its digits is 9408, while the sum is 33.

The square root of 13427871 is about 3664.4059545853. The cubic root of 13427871 is about 237.6853349286.

The spelling of 13427871 in words is "thirteen million, four hundred twenty-seven thousand, eight hundred seventy-one".