13663800 has 72 divisors (see below), whose sum is σ = 45893640. Its totient is φ = 3643200.

The previous prime is 13663799. The next prime is 13663807. The reversal of 13663800 is 836631.

13663800 is digitally balanced in base 2, because in such base 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 (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663807) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1996 + ... + 5595.

Almost surely, 2^13663800 is an apocalyptic number.

13663800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13663800 is an abundant number, since it is smaller than the sum of its proper divisors (32229840).

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

13663800 is a wasteful number, since it uses less digits than its factorization.

13663800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613 (or 7601 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13663800 is about 3696.4577638599. The cubic root of 13663800 is about 239.0693122498.

It can be divided in two parts, 136 and 63800, that added together give a palindrome (63936).

The spelling of 13663800 in words is "thirteen million, six hundred sixty-three thousand, eight hundred".