13655724 has 12 divisors (see below), whose sum is σ = 31863384. Its totient is φ = 4551904.

The previous prime is 13655713. The next prime is 13655729. The reversal of 13655724 is 42755631.

13655724 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13655729) 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, 568977 + ... + 569000.

It is an arithmetic number, because the mean of its divisors is an integer number (2655282).

Almost surely, 2^13655724 is an apocalyptic number.

It is an amenable number.

13655724 is an abundant number, since it is smaller than the sum of its proper divisors (18207660).

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

13655724 is a wasteful number, since it uses less digits than its factorization.

13655724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137984 (or 1137982 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 13655724 is about 3695.3652052267. The cubic root of 13655724 is about 239.0222022639.

The spelling of 13655724 in words is "thirteen million, six hundred fifty-five thousand, seven hundred twenty-four".