13706816 has 28 divisors (see below), whose sum is σ = 27553920. Its totient is φ = 6764160.

The previous prime is 13706813. The next prime is 13706837. The reversal of 13706816 is 61860731.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (13706813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3701 + ... + 6411.

Almost surely, 2^13706816 is an apocalyptic number.

13706816 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 13706816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13776960).

13706816 is an abundant number, since it is smaller than the sum of its proper divisors (13847104).

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

13706816 is an equidigital number, since it uses as much as digits as its factorization.

13706816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 13706816 is about 3702.2717350297. The cubic root of 13706816 is about 239.3199265894.

The spelling of 13706816 in words is "thirteen million, seven hundred six thousand, eight hundred sixteen".