13660841 has 4 divisors (see below), whose sum is σ = 13698432. Its totient is φ = 13623252.

The previous prime is 13660793. The next prime is 13660847. The reversal of 13660841 is 14806631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14806631 = 7 ⋅2115233.

It is a cyclic number.

It is not a de Polignac number, because 13660841 - 2¹⁰ = 13659817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13660847) 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, 18245 + ... + 18978.

It is an arithmetic number, because the mean of its divisors is an integer number (3424608).

Almost surely, 2^13660841 is an apocalyptic number.

It is an amenable number.

13660841 is a deficient number, since it is larger than the sum of its proper divisors (37591).

13660841 is an equidigital number, since it uses as much as digits as its factorization.

13660841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37590.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13660841 is about 3696.0574941416. The cubic root of 13660841 is about 239.0520535769.

The spelling of 13660841 in words is "thirteen million, six hundred sixty thousand, eight hundred forty-one".