27685436 has 12 divisors (see below), whose sum is σ = 48504120. Its totient is φ = 13827120.

The previous prime is 27685423. The next prime is 27685439. The reversal of 27685436 is 63458672.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27685393 and 27685402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27685439) 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 3 ways as a sum of consecutive naturals, for example, 695 + ... + 7473.

It is an arithmetic number, because the mean of its divisors is an integer number (4042010).

Almost surely, 2^27685436 is an apocalyptic number.

It is an amenable number.

27685436 is a deficient number, since it is larger than the sum of its proper divisors (20818684).

27685436 is a wasteful number, since it uses less digits than its factorization.

27685436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7804 (or 7802 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 27685436 is about 5261.6951641082. The cubic root of 27685436 is about 302.5174672882.

The spelling of 27685436 in words is "twenty-seven million, six hundred eighty-five thousand, four hundred thirty-six".