13597216 has 12 divisors (see below), whose sum is σ = 26769582. Its totient is φ = 6798592.

The previous prime is 13597211. The next prime is 13597219. The reversal of 13597216 is 61279531.

13597216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12988816 + 608400 = 3604^2 + 780^2 .

It is not an unprimeable number, because it can be changed into a prime (13597211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212425 + ... + 212488.

Almost surely, 2^13597216 is an apocalyptic number.

13597216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13597216 is a deficient number, since it is larger than the sum of its proper divisors (13172366).

13597216 is an equidigital number, since it uses as much as digits as its factorization.

13597216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424923 (or 424915 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 13597216 is about 3687.4403046016. The cubic root of 13597216 is about 238.6803497386.

The spelling of 13597216 in words is "thirteen million, five hundred ninety-seven thousand, two hundred sixteen".