13699687 has 8 divisors (see below), whose sum is σ = 14217840. Its totient is φ = 13184640.

The previous prime is 13699667. The next prime is 13699717. The reversal of 13699687 is 78699631.

13699687 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13699687 - 2¹¹ = 13697639 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 13699687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13699667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12012 + ... + 13102.

It is an arithmetic number, because the mean of its divisors is an integer number (1777230).

Almost surely, 2^13699687 is an apocalyptic number.

13699687 is a deficient number, since it is larger than the sum of its proper divisors (518153).

13699687 is a wasteful number, since it uses less digits than its factorization.

13699687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553.

The product of its digits is 489888, while the sum is 49.

The square root of 13699687 is about 3701.3088225653. The cubic root of 13699687 is about 239.2784288015.

The spelling of 13699687 in words is "thirteen million, six hundred ninety-nine thousand, six hundred eighty-seven".