13378871 has 8 divisors (see below), whose sum is σ = 14684544. Its totient is φ = 12088120.

The previous prime is 13378837. The next prime is 13378873. The reversal of 13378871 is 17887331.

13378871 is digitally balanced in base 2 and base 3, because in such bases 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 de Polignac number, because none of the positive numbers 2^k-13378871 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 (13378873) 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, 1805 + ... + 5478.

It is an arithmetic number, because the mean of its divisors is an integer number (1835568).

Almost surely, 2^13378871 is an apocalyptic number.

13378871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13378871 is a deficient number, since it is larger than the sum of its proper divisors (1305673).

13378871 is a wasteful number, since it uses less digits than its factorization.

13378871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461.

The product of its digits is 28224, while the sum is 38.

The square root of 13378871 is about 3657.7139035195. The cubic root of 13378871 is about 237.3958679233.

The spelling of 13378871 in words is "thirteen million, three hundred seventy-eight thousand, eight hundred seventy-one".