27686848 has 56 divisors (see below), whose sum is σ = 65544192. Its totient is φ = 11345664.

The previous prime is 27686837. The next prime is 27686861. The reversal of 27686848 is 84868672.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

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, 8961 + ... + 11647.

It is an arithmetic number, because the mean of its divisors is an integer number (1170432).

Almost surely, 2^27686848 is an apocalyptic number.

27686848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27686848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32772096).

27686848 is an abundant number, since it is smaller than the sum of its proper divisors (37857344).

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

27686848 is a wasteful number, since it uses less digits than its factorization.

27686848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2719 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The square root of 27686848 is about 5261.8293396879. The cubic root of 27686848 is about 302.5226101534.

The spelling of 27686848 in words is "twenty-seven million, six hundred eighty-six thousand, eight hundred forty-eight".