27909328 has 20 divisors (see below), whose sum is σ = 56920960. Its totient is φ = 13220064.

The previous prime is 27909313. The next prime is 27909367. The reversal of 27909328 is 82390972.

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 3 ways as a sum of consecutive naturals, for example, 45600 + ... + 46207.

It is an arithmetic number, because the mean of its divisors is an integer number (2846048).

Almost surely, 2^27909328 is an apocalyptic number.

It is an amenable number.

27909328 is an abundant number, since it is smaller than the sum of its proper divisors (29011632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27909328 is a wasteful number, since it uses less digits than its factorization.

27909328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91834 (or 91828 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 27909328 is about 5282.9279760375. The cubic root of 27909328 is about 303.3307646470.

The spelling of 27909328 in words is "twenty-seven million, nine hundred nine thousand, three hundred twenty-eight".