13413887 has 4 divisors (see below), whose sum is σ = 13448760. Its totient is φ = 13379016.

The previous prime is 13413859. The next prime is 13413889. The reversal of 13413887 is 78831431.

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 13413887 - 2¹² = 13409791 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 (13413889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16853 + ... + 17630.

It is an arithmetic number, because the mean of its divisors is an integer number (3362190).

Almost surely, 2^13413887 is an apocalyptic number.

13413887 is a deficient number, since it is larger than the sum of its proper divisors (34873).

13413887 is an equidigital number, since it uses as much as digits as its factorization.

13413887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34872.

The product of its digits is 16128, while the sum is 35.

The square root of 13413887 is about 3662.4973720127. The cubic root of 13413887 is about 237.6027964977.

The spelling of 13413887 in words is "thirteen million, four hundred thirteen thousand, eight hundred eighty-seven".