27685944 has 96 divisors (see below), whose sum is σ = 88124400. Its totient is φ = 7741440.

The previous prime is 27685939. The next prime is 27685949. The reversal of 27685944 is 44958672.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27685939) and next prime (27685949).

It is a super-2 number, since 2×27685944² = 1533022990342272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27685944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27685949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8952 + ... + 11640.

Almost surely, 2^27685944 is an apocalyptic number.

27685944 is a gapful number since it is divisible by the number (24) 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 27685944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44062200).

27685944 is an abundant number, since it is smaller than the sum of its proper divisors (60438456).

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

27685944 is a wasteful number, since it uses less digits than its factorization.

27685944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2718 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 27685944 is about 5261.7434373029. The cubic root of 27685944 is about 302.5193175743.

The spelling of 27685944 in words is "twenty-seven million, six hundred eighty-five thousand, nine hundred forty-four".