13877887 has 8 divisors (see below), whose sum is σ = 14119056. Its totient is φ = 13638912.

The previous prime is 13877879. The next prime is 13877893. The reversal of 13877887 is 78877831.

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 13877887 - 2³ = 13877879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13877887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13877807) 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, 16368 + ... + 17194.

It is an arithmetic number, because the mean of its divisors is an integer number (1764882).

Almost surely, 2^13877887 is an apocalyptic number.

13877887 is a deficient number, since it is larger than the sum of its proper divisors (241169).

13877887 is an equidigital number, since it uses as much as digits as its factorization.

13877887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097.

The product of its digits is 526848, while the sum is 49.

The square root of 13877887 is about 3725.3036117879. The cubic root of 13877887 is about 240.3114417402.

The spelling of 13877887 in words is "thirteen million, eight hundred seventy-seven thousand, eight hundred eighty-seven".