13689361 has 8 divisors (see below), whose sum is σ = 15978240. Its totient is φ = 11483808.

The previous prime is 13689359. The next prime is 13689397. The reversal of 13689361 is 16398631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13689361 - 2¹ = 13689359 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 13689361.

It is not an unprimeable number, because it can be changed into a prime (13689311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20476 + ... + 21133.

It is an arithmetic number, because the mean of its divisors is an integer number (1997280).

Almost surely, 2^13689361 is an apocalyptic number.

It is an amenable number.

13689361 is a deficient number, since it is larger than the sum of its proper divisors (2288879).

13689361 is an equidigital number, since it uses as much as digits as its factorization.

13689361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41663.

The product of its digits is 23328, while the sum is 37.

The square root of 13689361 is about 3699.9136476410. The cubic root of 13689361 is about 239.2182957952.

It can be divided in two parts, 13689 and 361, that multiplied together give a square (4941729 = 2223²).

The spelling of 13689361 in words is "thirteen million, six hundred eighty-nine thousand, three hundred sixty-one".