13667748 has 12 divisors (see below), whose sum is σ = 31891440. Its totient is φ = 4555912.

The previous prime is 13667747. The next prime is 13667749. The reversal of 13667748 is 84776631.

It is an interprime number because it is at equal distance from previous prime (13667747) and next prime (13667749).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13667747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569478 + ... + 569501.

It is an arithmetic number, because the mean of its divisors is an integer number (2657620).

Almost surely, 2^13667748 is an apocalyptic number.

It is an amenable number.

13667748 is an abundant number, since it is smaller than the sum of its proper divisors (18223692).

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

13667748 is a wasteful number, since it uses less digits than its factorization.

13667748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138986 (or 1138984 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 13667748 is about 3696.9917500584. The cubic root of 13667748 is about 239.0923354877.

The spelling of 13667748 in words is "thirteen million, six hundred sixty-seven thousand, seven hundred forty-eight".