13689952 has 24 divisors (see below), whose sum is σ = 27046656. Its totient is φ = 6820992.

The previous prime is 13689931. The next prime is 13689959. The reversal of 13689952 is 25998631.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13689899 and 13689908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11698 + ... + 12814.

It is an arithmetic number, because the mean of its divisors is an integer number (1126944).

Almost surely, 2^13689952 is an apocalyptic number.

It is an amenable number.

13689952 is a deficient number, since it is larger than the sum of its proper divisors (13356704).

13689952 is a wasteful number, since it uses less digits than its factorization.

13689952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510 (or 1502 counting only the distinct ones).

The product of its digits is 116640, while the sum is 43.

The square root of 13689952 is about 3699.9935135078. The cubic root of 13689952 is about 239.2217382734.

It can be divided in two parts, 13689 and 952, that added together give a palindrome (14641).

The spelling of 13689952 in words is "thirteen million, six hundred eighty-nine thousand, nine hundred fifty-two".