13749968 has 10 divisors (see below), whose sum is σ = 26640594. Its totient is φ = 6874976.

The previous prime is 13749961. The next prime is 13749971. The reversal of 13749968 is 86994731.

13749968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6927424 + 6822544 = 2632^2 + 2612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429671 + ... + 429702.

Almost surely, 2^13749968 is an apocalyptic number.

It is an amenable number.

13749968 is a deficient number, since it is larger than the sum of its proper divisors (12890626).

13749968 is an equidigital number, since it uses as much as digits as its factorization.

13749968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859381 (or 859375 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 13749968 is about 3708.0949286662. The cubic root of 13749968 is about 239.5708070040.

It can be divided in two parts, 137 and 49968, that added together give a palindrome (50105).

The spelling of 13749968 in words is "thirteen million, seven hundred forty-nine thousand, nine hundred sixty-eight".