13539698 has 8 divisors (see below), whose sum is σ = 20692908. Its totient is φ = 6642064.

The previous prime is 13539683. The next prime is 13539719. The reversal of 13539698 is 89693531.

It can be written as a sum of positive squares in 2 ways, for example, as 12794929 + 744769 = 3577^2 + 863^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63761 + ... + 63972.

Almost surely, 2^13539698 is an apocalyptic number.

13539698 is a deficient number, since it is larger than the sum of its proper divisors (7153210).

13539698 is a wasteful number, since it uses less digits than its factorization.

13539698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127788.

The product of its digits is 174960, while the sum is 44.

The square root of 13539698 is about 3679.6328621209. The cubic root of 13539698 is about 238.3433243838.

The spelling of 13539698 in words is "thirteen million, five hundred thirty-nine thousand, six hundred ninety-eight".