13566872 has 32 divisors (see below), whose sum is σ = 28961280. Its totient is φ = 5897760.

The previous prime is 13566869. The next prime is 13566877. The reversal of 13566872 is 27866531.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13566877) 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 7 ways as a sum of consecutive naturals, for example, 1328 + ... + 5375.

It is an arithmetic number, because the mean of its divisors is an integer number (905040).

Almost surely, 2^13566872 is an apocalyptic number.

It is an amenable number.

13566872 is an abundant number, since it is smaller than the sum of its proper divisors (15394408).

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

13566872 is a wasteful number, since it uses less digits than its factorization.

13566872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743 (or 6739 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 13566872 is about 3683.3234992327. The cubic root of 13566872 is about 238.5026684944.

It can be divided in two parts, 1356 and 6872, that added together give a palindrome (8228).

The spelling of 13566872 in words is "thirteen million, five hundred sixty-six thousand, eight hundred seventy-two".