13689237 has 8 divisors (see below), whose sum is σ = 18433440. Its totient is φ = 9035600.

The previous prime is 13689227. The next prime is 13689241. The reversal of 13689237 is 73298631.

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 13689237 - 2⁸ = 13688981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13689195 and 13689204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689227) 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, 22287 + ... + 22892.

It is an arithmetic number, because the mean of its divisors is an integer number (2304180).

Almost surely, 2^13689237 is an apocalyptic number.

It is an amenable number.

13689237 is a deficient number, since it is larger than the sum of its proper divisors (4744203).

13689237 is a wasteful number, since it uses less digits than its factorization.

13689237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45283.

The product of its digits is 54432, while the sum is 39.

The square root of 13689237 is about 3699.8968904552. The cubic root of 13689237 is about 239.2175735030.

The spelling of 13689237 in words is "thirteen million, six hundred eighty-nine thousand, two hundred thirty-seven".