13689458 has 8 divisors (see below), whose sum is σ = 20665452. Its totient is φ = 6800976.

The previous prime is 13689433. The next prime is 13689461. The reversal of 13689458 is 85498631.

It can be written as a sum of positive squares in 2 ways, for example, as 11042329 + 2647129 = 3323^2 + 1627^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21485 + ... + 22112.

Almost surely, 2^13689458 is an apocalyptic number.

13689458 is a deficient number, since it is larger than the sum of its proper divisors (6975994).

13689458 is a wasteful number, since it uses less digits than its factorization.

13689458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43756.

The product of its digits is 207360, while the sum is 44.

The square root of 13689458 is about 3699.9267560318. The cubic root of 13689458 is about 239.2188608111.

The spelling of 13689458 in words is "thirteen million, six hundred eighty-nine thousand, four hundred fifty-eight".