13768687 has 4 divisors (see below), whose sum is σ = 13799016. Its totient is φ = 13738360.

The previous prime is 13768679. The next prime is 13768693. The reversal of 13768687 is 78686731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13768687 - 2³ = 13768679 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 (13768627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14473 + ... + 15394.

It is an arithmetic number, because the mean of its divisors is an integer number (3449754).

Almost surely, 2^13768687 is an apocalyptic number.

13768687 is a deficient number, since it is larger than the sum of its proper divisors (30329).

13768687 is an equidigital number, since it uses as much as digits as its factorization.

13768687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30328.

The product of its digits is 338688, while the sum is 46.

The square root of 13768687 is about 3710.6181425741. The cubic root of 13768687 is about 239.6794737398.

The spelling of 13768687 in words is "thirteen million, seven hundred sixty-eight thousand, six hundred eighty-seven".