13704661 has 4 divisors (see below), whose sum is σ = 13769824. Its totient is φ = 13639500.

The previous prime is 13704653. The next prime is 13704673. The reversal of 13704661 is 16640731.

13704661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13704661 - 2³ = 13704653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13704631) 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, 32265 + ... + 32686.

It is an arithmetic number, because the mean of its divisors is an integer number (3442456).

Almost surely, 2^13704661 is an apocalyptic number.

It is an amenable number.

13704661 is a deficient number, since it is larger than the sum of its proper divisors (65163).

13704661 is an equidigital number, since it uses as much as digits as its factorization.

13704661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65162.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13704661 is about 3701.9806860652. The cubic root of 13704661 is about 239.3073838887.

It can be divided in two parts, 13704 and 661, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 13704661 in words is "thirteen million, seven hundred four thousand, six hundred sixty-one".