13707644 has 24 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 6311936.

The previous prime is 13707643. The next prime is 13707667. The reversal of 13707644 is 44670731.

It is a happy number.

13707644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13707644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13707643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052 + ... + 5340.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^13707644 is an apocalyptic number.

It is an amenable number.

13707644 is a deficient number, since it is larger than the sum of its proper divisors (12238276).

13707644 is a wasteful number, since it uses less digits than its factorization.

13707644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357 (or 4355 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 13707644 is about 3702.3835565754. The cubic root of 13707644 is about 239.3247454306.

The spelling of 13707644 in words is "thirteen million, seven hundred seven thousand, six hundred forty-four".