13468821 has 8 divisors (see below), whose sum is σ = 17989920. Its totient is φ = 8963472.

The previous prime is 13468813. The next prime is 13468843. The reversal of 13468821 is 12886431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13468821 - 2³ = 13468813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13468801) 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, 1770 + ... + 5483.

It is an arithmetic number, because the mean of its divisors is an integer number (2248740).

Almost surely, 2^13468821 is an apocalyptic number.

It is an amenable number.

13468821 is a deficient number, since it is larger than the sum of its proper divisors (4521099).

13468821 is an equidigital number, since it uses as much as digits as its factorization.

13468821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875.

The product of its digits is 9216, while the sum is 33.

The square root of 13468821 is about 3669.9892370414. The cubic root of 13468821 is about 237.9267069468.

The spelling of 13468821 in words is "thirteen million, four hundred sixty-eight thousand, eight hundred twenty-one".