13521696 has 48 divisors (see below), whose sum is σ = 35943264. Its totient is φ = 4450304.

The previous prime is 13521667. The next prime is 13521701. The reversal of 13521696 is 69612531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7120 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (748818).

Almost surely, 2^13521696 is an apocalyptic number.

13521696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13521696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17971632).

13521696 is an abundant number, since it is smaller than the sum of its proper divisors (22421568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13521696 is a wasteful number, since it uses less digits than its factorization.

13521696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1785 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 13521696 is about 3677.1858805342. The cubic root of 13521696 is about 238.2376460171.

The spelling of 13521696 in words is "thirteen million, five hundred twenty-one thousand, six hundred ninety-six".