13706539 has 32 divisors (see below), whose sum is σ = 18648576. Its totient is φ = 9745920.

The previous prime is 13706533. The next prime is 13706591. The reversal of 13706539 is 93560731.

It is a cyclic number.

It is not a de Polignac number, because 13706539 - 2⁹ = 13706027 is a prime.

It is a super-2 number, since 2×13706539² = 375738422717042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13706533) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 48292 + ... + 48574.

It is an arithmetic number, because the mean of its divisors is an integer number (582768).

Almost surely, 2^13706539 is an apocalyptic number.

13706539 is a deficient number, since it is larger than the sum of its proper divisors (4942037).

13706539 is a wasteful number, since it uses less digits than its factorization.

13706539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 13706539 is about 3702.2343253770. The cubic root of 13706539 is about 239.3183144458.

The spelling of 13706539 in words is "thirteen million, seven hundred six thousand, five hundred thirty-nine".