13704539 has 4 divisors (see below), whose sum is σ = 13719360. Its totient is φ = 13689720.

The previous prime is 13704497. The next prime is 13704553. The reversal of 13704539 is 93540731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13704539 - 2⁸ = 13704283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13704569) by changing a digit.

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, 5924 + ... + 7905.

It is an arithmetic number, because the mean of its divisors is an integer number (3429840).

Almost surely, 2^13704539 is an apocalyptic number.

13704539 is a deficient number, since it is larger than the sum of its proper divisors (14821).

13704539 is an equidigital number, since it uses as much as digits as its factorization.

13704539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14820.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13704539 is about 3701.9642083629. The cubic root of 13704539 is about 239.3066737753.

The spelling of 13704539 in words is "thirteen million, seven hundred four thousand, five hundred thirty-nine".