13689607 has 4 divisors (see below), whose sum is σ = 14494896. Its totient is φ = 12884320.

The previous prime is 13689601. The next prime is 13689647. The reversal of 13689607 is 70698631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13689607 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 13689607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689601) 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 3 ways as a sum of consecutive naturals, for example, 402619 + ... + 402652.

It is an arithmetic number, because the mean of its divisors is an integer number (3623724).

Almost surely, 2^13689607 is an apocalyptic number.

13689607 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13689607 is a deficient number, since it is larger than the sum of its proper divisors (805289).

13689607 is an equidigital number, since it uses as much as digits as its factorization.

13689607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805288.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13689607 is about 3699.9468915107. The cubic root of 13689607 is about 239.2197287170.

The spelling of 13689607 in words is "thirteen million, six hundred eighty-nine thousand, six hundred seven".