13723636 has 12 divisors (see below), whose sum is σ = 24423840. Its totient is φ = 6745400.

The previous prime is 13723631. The next prime is 13723667. The reversal of 13723636 is 63632731.

13723636 is a modest number, since divided by 3636 gives 1372 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 13723598 and 13723607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13723631) 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, 28840 + ... + 29311.

It is an arithmetic number, because the mean of its divisors is an integer number (2035320).

Almost surely, 2^13723636 is an apocalyptic number.

It is an amenable number.

13723636 is a deficient number, since it is larger than the sum of its proper divisors (10700204).

13723636 is a wasteful number, since it uses less digits than its factorization.

13723636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58214 (or 58212 counting only the distinct ones).

The product of its digits is 13608, while the sum is 31.

The square root of 13723636 is about 3704.5426168422. The cubic root of 13723636 is about 239.4177785326.

The spelling of 13723636 in words is "thirteen million, seven hundred twenty-three thousand, six hundred thirty-six".