27678448 has 40 divisors (see below), whose sum is σ = 64897632. Its totient is φ = 11163648.

The previous prime is 27678419. The next prime is 27678449. The reversal of 27678448 is 84487672.

It is a junction number, because it is equal to n+sod(n) for n = 27678398 and 27678407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27678449) 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, 5365 + ... + 9172.

Almost surely, 2^27678448 is an apocalyptic number.

27678448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27678448 is an abundant number, since it is smaller than the sum of its proper divisors (37219184).

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

27678448 is a wasteful number, since it uses less digits than its factorization.

27678448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14569 (or 14563 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 27678448 is about 5261.0310776501. The cubic root of 27678448 is about 302.4920126298.

The spelling of 27678448 in words is "twenty-seven million, six hundred seventy-eight thousand, four hundred forty-eight".