13781327 has 8 divisors (see below), whose sum is σ = 16579200. Its totient is φ = 11190744.

The previous prime is 13781321. The next prime is 13781357. The reversal of 13781327 is 72318731.

13781327 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 a cyclic number.

It is not a de Polignac number, because 13781327 - 2⁴ = 13781311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13781293 and 13781302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13781321) 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, 51677 + ... + 51942.

It is an arithmetic number, because the mean of its divisors is an integer number (2072400).

Almost surely, 2^13781327 is an apocalyptic number.

13781327 is a deficient number, since it is larger than the sum of its proper divisors (2797873).

13781327 is a wasteful number, since it uses less digits than its factorization.

13781327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103645.

The product of its digits is 7056, while the sum is 32.

The square root of 13781327 is about 3712.3209721143. The cubic root of 13781327 is about 239.7527952301.

The spelling of 13781327 in words is "thirteen million, seven hundred eighty-one thousand, three hundred twenty-seven".