13207668 has 48 divisors (see below), whose sum is σ = 32022144. Its totient is φ = 4233600.

The previous prime is 13207613. The next prime is 13207687. The reversal of 13207668 is 86670231.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66946 + ... + 67142.

It is an arithmetic number, because the mean of its divisors is an integer number (667128).

Almost surely, 2^13207668 is an apocalyptic number.

It is an amenable number.

13207668 is an abundant number, since it is smaller than the sum of its proper divisors (18814476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13207668 is a wasteful number, since it uses less digits than its factorization.

13207668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 13207668 is about 3634.2355454758. The cubic root of 13207668 is about 236.3789039268.

Adding to 13207668 its reverse (86670231), we get a palindrome (99877899).

The spelling of 13207668 in words is "thirteen million, two hundred seven thousand, six hundred sixty-eight".