27645648 has 40 divisors (see below), whose sum is σ = 72772128. Its totient is φ = 9040512.

The previous prime is 27645643. The next prime is 27645661. The reversal of 27645648 is 84654672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27645643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2890 + ... + 7977.

Almost surely, 2^27645648 is an apocalyptic number.

It is an amenable number.

27645648 is an abundant number, since it is smaller than the sum of its proper divisors (45126480).

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

27645648 is a wasteful number, since it uses less digits than its factorization.

27645648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10931 (or 10925 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 27645648 is about 5257.9128939152. The cubic root of 27645648 is about 302.3724772689.

The spelling of 27645648 in words is "twenty-seven million, six hundred forty-five thousand, six hundred forty-eight".