13689488 has 20 divisors (see below), whose sum is σ = 28084140. Its totient is φ = 6441984.

The previous prime is 13689461. The next prime is 13689499. The reversal of 13689488 is 88498631.

It can be written as a sum of positive squares in 2 ways, for example, as 4129024 + 9560464 = 2032^2 + 3092^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24893 + ... + 25436.

It is an arithmetic number, because the mean of its divisors is an integer number (1404207).

Almost surely, 2^13689488 is an apocalyptic number.

It is an amenable number.

13689488 is an abundant number, since it is smaller than the sum of its proper divisors (14394652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13689488 is a wasteful number, since it uses less digits than its factorization.

13689488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50354 (or 50348 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 13689488 is about 3699.9308101639. The cubic root of 13689488 is about 239.2190355578.

The spelling of 13689488 in words is "thirteen million, six hundred eighty-nine thousand, four hundred eighty-eight".