13887670 has 24 divisors (see below), whose sum is σ = 26389584. Its totient is φ = 5261328.

The previous prime is 13887641. The next prime is 13887677. The reversal of 13887670 is 7678831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13887677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1687 + ... + 5533.

It is an arithmetic number, because the mean of its divisors is an integer number (1099566).

Almost surely, 2^13887670 is an apocalyptic number.

13887670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13887670 is a deficient number, since it is larger than the sum of its proper divisors (12501914).

13887670 is a wasteful number, since it uses less digits than its factorization.

13887670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 13887670 is about 3726.6164278069. The cubic root of 13887670 is about 240.3678964110.

The spelling of 13887670 in words is "thirteen million, eight hundred eighty-seven thousand, six hundred seventy".