13707321 has 8 divisors (see below), whose sum is σ = 19351584. Its totient is φ = 8600640.

The previous prime is 13707289. The next prime is 13707347. The reversal of 13707321 is 12370731.

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

It is not a de Polignac number, because 13707321 - 2⁵ = 13707289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13707291 and 13707300.

It is not an unprimeable number, because it can be changed into a prime (13707391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134335 + ... + 134436.

It is an arithmetic number, because the mean of its divisors is an integer number (2418948).

Almost surely, 2^13707321 is an apocalyptic number.

It is an amenable number.

13707321 is a deficient number, since it is larger than the sum of its proper divisors (5644263).

13707321 is a wasteful number, since it uses less digits than its factorization.

13707321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268791.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 13707321 is about 3702.3399357704. The cubic root of 13707321 is about 239.3228656400.

It can be divided in two parts, 13707 and 321, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13707321 in words is "thirteen million, seven hundred seven thousand, three hundred twenty-one".