13887210 has 32 divisors (see below), whose sum is σ = 34232832. Its totient is φ = 3602880.

The previous prime is 13887191. The next prime is 13887227. The reversal of 13887210 is 1278831.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5146 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (1069776).

Almost surely, 2^13887210 is an apocalyptic number.

13887210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13887210 is an abundant number, since it is smaller than the sum of its proper divisors (20345622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13887210 is a wasteful number, since it uses less digits than its factorization.

13887210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12558.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 13887210 is about 3726.5547091114. The cubic root of 13887210 is about 240.3652424872.

The spelling of 13887210 in words is "thirteen million, eight hundred eighty-seven thousand, two hundred ten".