27120172 has 12 divisors (see below), whose sum is σ = 47735856. Its totient is φ = 13481360.

The previous prime is 27120139. The next prime is 27120211. The reversal of 27120172 is 27102172.

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 3 ways as a sum of consecutive naturals, for example, 18904 + ... + 20287.

It is an arithmetic number, because the mean of its divisors is an integer number (3977988).

Almost surely, 2^27120172 is an apocalyptic number.

It is an amenable number.

27120172 is a deficient number, since it is larger than the sum of its proper divisors (20615684).

27120172 is a wasteful number, since it uses less digits than its factorization.

27120172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39368 (or 39366 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 27120172 is about 5207.7031405409. The cubic root of 27120172 is about 300.4444227843. Note that the first 4 decimals are identical.

The spelling of 27120172 in words is "twenty-seven million, one hundred twenty thousand, one hundred seventy-two".