13668735 has 8 divisors (see below), whose sum is σ = 21870000. Its totient is φ = 7289984.

The previous prime is 13668727. The next prime is 13668749. The reversal of 13668735 is 53786631.

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 13668735 - 2³ = 13668727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13668693 and 13668702.

It is a congruent number.

It is an unprimeable number.

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, 455610 + ... + 455639.

It is an arithmetic number, because the mean of its divisors is an integer number (2733750).

Almost surely, 2^13668735 is an apocalyptic number.

13668735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13668735 is a deficient number, since it is larger than the sum of its proper divisors (8201265).

13668735 is an equidigital number, since it uses as much as digits as its factorization.

13668735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911257.

The product of its digits is 90720, while the sum is 39.

The square root of 13668735 is about 3697.1252345572. The cubic root of 13668735 is about 239.0980906044.

It can be divided in two parts, 1366 and 8735, that added together give a palindrome (10101).

The spelling of 13668735 in words is "thirteen million, six hundred sixty-eight thousand, seven hundred thirty-five".