13564803 has 16 divisors (see below), whose sum is σ = 21758720. Its totient is φ = 7343136.

The previous prime is 13564729. The next prime is 13564807. The reversal of 13564803 is 30846531.

It is not a de Polignac number, because 13564803 - 2¹⁰ = 13563779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13564807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16600 + ... + 17397.

It is an arithmetic number, because the mean of its divisors is an integer number (1359920).

Almost surely, 2^13564803 is an apocalyptic number.

13564803 is a deficient number, since it is larger than the sum of its proper divisors (8193917).

13564803 is a wasteful number, since it uses less digits than its factorization.

13564803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34026.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13564803 is about 3683.0426280455. The cubic root of 13564803 is about 238.4905436876.

The spelling of 13564803 in words is "thirteen million, five hundred sixty-four thousand, eight hundred three".