13887351 has 24 divisors (see below), whose sum is σ = 21425040. Its totient is φ = 8637696.

The previous prime is 13887343. The next prime is 13887359. The reversal of 13887351 is 15378831.

It is an interprime number because it is at equal distance from previous prime (13887343) and next prime (13887359).

It is not a de Polignac number, because 13887351 - 2³ = 13887343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887359) 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 23 ways as a sum of consecutive naturals, for example, 20941 + ... + 21593.

It is an arithmetic number, because the mean of its divisors is an integer number (892710).

Almost surely, 2^13887351 is an apocalyptic number.

13887351 is a deficient number, since it is larger than the sum of its proper divisors (7537689).

13887351 is a wasteful number, since it uses less digits than its factorization.

13887351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 812 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 13887351 is about 3726.5736273419. The cubic root of 13887351 is about 240.3660559787.

It can be divided in two parts, 13 and 887351, that added together give a square (887364 = 942²).

The spelling of 13887351 in words is "thirteen million, eight hundred eighty-seven thousand, three hundred fifty-one".