27920512 has 32 divisors (see below), whose sum is σ = 55875600. Its totient is φ = 13896960.

The previous prime is 27920509. The next prime is 27920527. The reversal of 27920512 is 21502972.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42039 + ... + 42697.

Almost surely, 2^27920512 is an apocalyptic number.

It is an amenable number.

27920512 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

27920512 is an equidigital number, since it uses as much as digits as its factorization.

27920512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 27920512 is about 5283.9863739416. The cubic root of 27920512 is about 303.3712767681.

The spelling of 27920512 in words is "twenty-seven million, nine hundred twenty thousand, five hundred twelve".