13785648 has 40 divisors (see below), whose sum is σ = 37164288. Its totient is φ = 4395072.

The previous prime is 13785641. The next prime is 13785649. The reversal of 13785648 is 84658731.

It is not an unprimeable number, because it can be changed into a prime (13785641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5140 + ... + 7347.

Almost surely, 2^13785648 is an apocalyptic number.

It is an amenable number.

13785648 is an abundant number, since it is smaller than the sum of its proper divisors (23378640).

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

13785648 is a wasteful number, since it uses less digits than its factorization.

13785648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12521 (or 12515 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 13785648 is about 3712.9029074297. The cubic root of 13785648 is about 239.7778499914. Note that the first 3 decimals are identical.

The spelling of 13785648 in words is "thirteen million, seven hundred eighty-five thousand, six hundred forty-eight".