13655856 has 40 divisors (see below), whose sum is σ = 35783424. Its totient is φ = 4486720.

The previous prime is 13655827. The next prime is 13655857. The reversal of 13655856 is 65855631.

It is not an unprimeable number, because it can be changed into a prime (13655857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405 + ... + 5411.

Almost surely, 2^13655856 is an apocalyptic number.

13655856 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 13655856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17891712).

13655856 is an abundant number, since it is smaller than the sum of its proper divisors (22127568).

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

13655856 is a wasteful number, since it uses less digits than its factorization.

13655856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089 (or 4083 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 13655856 is about 3695.3830653939. The cubic root of 13655856 is about 239.0229724130.

The spelling of 13655856 in words is "thirteen million, six hundred fifty-five thousand, eight hundred fifty-six".