13656803 has 4 divisors (see below), whose sum is σ = 13670088. Its totient is φ = 13643520.

The previous prime is 13656791. The next prime is 13656821. The reversal of 13656803 is 30865631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13656803 - 2⁴ = 13656787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13656803.

It is not an unprimeable number, because it can be changed into a prime (13656103) 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 3 ways as a sum of consecutive naturals, for example, 4958 + ... + 7203.

It is an arithmetic number, because the mean of its divisors is an integer number (3417522).

Almost surely, 2^13656803 is an apocalyptic number.

13656803 is a deficient number, since it is larger than the sum of its proper divisors (13285).

13656803 is a wasteful number, since it uses less digits than its factorization.

13656803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13284.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13656803 is about 3695.5111960323. The cubic root of 13656803 is about 239.0284975035.

The spelling of 13656803 in words is "thirteen million, six hundred fifty-six thousand, eight hundred three".