13671413 has 4 divisors (see below), whose sum is σ = 15624480. Its totient is φ = 11718348.

The previous prime is 13671373. The next prime is 13671419. The reversal of 13671413 is 31417631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31417631 = 7 ⋅4488233.

It is a cyclic number.

It is not a de Polignac number, because 13671413 - 2¹² = 13667317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671419) 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, 976523 + ... + 976536.

It is an arithmetic number, because the mean of its divisors is an integer number (3906120).

Almost surely, 2^13671413 is an apocalyptic number.

It is an amenable number.

13671413 is a deficient number, since it is larger than the sum of its proper divisors (1953067).

13671413 is an equidigital number, since it uses as much as digits as its factorization.

13671413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953066.

The product of its digits is 1512, while the sum is 26.

The square root of 13671413 is about 3697.4873901070. The cubic root of 13671413 is about 239.1137044091.

The spelling of 13671413 in words is "thirteen million, six hundred seventy-one thousand, four hundred thirteen".