27027638 has 16 divisors (see below), whose sum is σ = 44789760. Its totient is φ = 12129000.

The previous prime is 27027619. The next prime is 27027647. The reversal of 27027638 is 83672072.

It is a junction number, because it is equal to n+sod(n) for n = 27027598 and 27027607.

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, 6038 + ... + 9513.

It is an arithmetic number, because the mean of its divisors is an integer number (2799360).

Almost surely, 2^27027638 is an apocalyptic number.

27027638 is a deficient number, since it is larger than the sum of its proper divisors (17762122).

27027638 is a wasteful number, since it uses less digits than its factorization.

27027638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15643.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 27027638 is about 5198.8112102672. The cubic root of 27027638 is about 300.1023280556.

The spelling of 27027638 in words is "twenty-seven million, twenty-seven thousand, six hundred thirty-eight".