13352821 has 8 divisors (see below), whose sum is σ = 13652640. Its totient is φ = 13055568.

The previous prime is 13352783. The next prime is 13352831. The reversal of 13352821 is 12825331.

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

It is a cyclic number.

It is not a de Polignac number, because 13352821 - 2¹⁷ = 13221749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13352831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12895 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (1706580).

Almost surely, 2^13352821 is an apocalyptic number.

It is an amenable number.

13352821 is a deficient number, since it is larger than the sum of its proper divisors (299819).

13352821 is an equidigital number, since it uses as much as digits as its factorization.

13352821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283.

The product of its digits is 1440, while the sum is 25.

The square root of 13352821 is about 3654.1512010315. The cubic root of 13352821 is about 237.2416899802.

The spelling of 13352821 in words is "thirteen million, three hundred fifty-two thousand, eight hundred twenty-one".