13447768 has 16 divisors (see below), whose sum is σ = 25561080. Its totient is φ = 6631488.

The previous prime is 13447751. The next prime is 13447787. The reversal of 13447768 is 86774431.

It is a self number, because there is not a number n which added to its sum of digits gives 13447768.

It is a congruent number.

It is an unprimeable number.

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, 10930 + ... + 12097.

Almost surely, 2^13447768 is an apocalyptic number.

It is an amenable number.

13447768 is a deficient number, since it is larger than the sum of its proper divisors (12113312).

13447768 is a wasteful number, since it uses less digits than its factorization.

13447768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23106 (or 23102 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 13447768 is about 3667.1198507821. The cubic root of 13447768 is about 237.8026752267.

The spelling of 13447768 in words is "thirteen million, four hundred forty-seven thousand, seven hundred sixty-eight".