27128938 has 8 divisors (see below), whose sum is σ = 40743360. Its totient is φ = 13547820.

The previous prime is 27128929. The next prime is 27128939. The reversal of 27128938 is 83982172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 27128938.

It is not an unprimeable number, because it can be changed into a prime (27128939) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6178 + ... + 9613.

It is an arithmetic number, because the mean of its divisors is an integer number (5092920).

Almost surely, 2^27128938 is an apocalyptic number.

27128938 is a deficient number, since it is larger than the sum of its proper divisors (13614422).

27128938 is a wasteful number, since it uses less digits than its factorization.

27128938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16652.

The product of its digits is 48384, while the sum is 40.

The square root of 27128938 is about 5208.5447103774. The cubic root of 27128938 is about 300.4767899844.

The spelling of 27128938 in words is "twenty-seven million, one hundred twenty-eight thousand, nine hundred thirty-eight".