13689575 has 6 divisors (see below), whose sum is σ = 16975104. Its totient is φ = 10951640.

The previous prime is 13689563. The next prime is 13689587. The reversal of 13689575 is 57598631.

It is an interprime number because it is at equal distance from previous prime (13689563) and next prime (13689587).

It is not a de Polignac number, because 13689575 - 2¹² = 13685479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 273767 + ... + 273816.

It is an arithmetic number, because the mean of its divisors is an integer number (2829184).

Almost surely, 2^13689575 is an apocalyptic number.

13689575 is a deficient number, since it is larger than the sum of its proper divisors (3285529).

13689575 is an equidigital number, since it uses as much as digits as its factorization.

13689575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547593 (or 547588 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 13689575 is about 3699.9425671218. The cubic root of 13689575 is about 239.2195423216.

The spelling of 13689575 in words is "thirteen million, six hundred eighty-nine thousand, five hundred seventy-five".