27171028 has 36 divisors (see below), whose sum is σ = 50702652. Its totient is φ = 12732160.

The previous prime is 27171019. The next prime is 27171031. The reversal of 27171028 is 82017172.

It can be written as a sum of positive squares in 6 ways, for example, as 110224 + 27060804 = 332^2 + 5202^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27170987 and 27171005.

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 11 ways as a sum of consecutive naturals, for example, 137826 + ... + 138022.

It is an arithmetic number, because the mean of its divisors is an integer number (1408407).

Almost surely, 2^27171028 is an apocalyptic number.

It is an amenable number.

27171028 is a deficient number, since it is larger than the sum of its proper divisors (23531624).

27171028 is a wasteful number, since it uses less digits than its factorization.

27171028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 27171028 is about 5212.5836204324. The cubic root of 27171028 is about 300.6321042490.

The spelling of 27171028 in words is "twenty-seven million, one hundred seventy-one thousand, twenty-eight".