13660831 has 8 divisors (see below), whose sum is σ = 14205744. Its totient is φ = 13126080.

The previous prime is 13660793. The next prime is 13660847. The reversal of 13660831 is 13806631.

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 13660831 - 2⁹ = 13660319 is a prime.

It is a super-2 number, since 2×13660831² = 373236607221122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13660831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (1775718).

Almost surely, 2^13660831 is an apocalyptic number.

13660831 is a deficient number, since it is larger than the sum of its proper divisors (544913).

13660831 is an equidigital number, since it uses as much as digits as its factorization.

13660831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13660831 is about 3696.0561413485. The cubic root of 13660831 is about 239.0519952466.

The spelling of 13660831 in words is "thirteen million, six hundred sixty thousand, eight hundred thirty-one".