27685472 has 48 divisors (see below), whose sum is σ = 56977200. Its totient is φ = 13229568.

The previous prime is 27685457. The next prime is 27685481. The reversal of 27685472 is 27458672.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79154 + ... + 79502.

It is an arithmetic number, because the mean of its divisors is an integer number (1187025).

Almost surely, 2^27685472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27685472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28488600).

27685472 is an abundant number, since it is smaller than the sum of its proper divisors (29291728).

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

27685472 is a wasteful number, since it uses less digits than its factorization.

27685472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 455 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 27685472 is about 5261.6985850579. The cubic root of 27685472 is about 302.5175984115.

The spelling of 27685472 in words is "twenty-seven million, six hundred eighty-five thousand, four hundred seventy-two".