27027012 has 12 divisors (see below), whose sum is σ = 63063056. Its totient is φ = 9009000.

The previous prime is 27026977. The next prime is 27027019. The reversal of 27027012 is 21072072.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 27027012.

It is not an unprimeable number, because it can be changed into a prime (27027019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126114 + ... + 1126137.

Almost surely, 2^27027012 is an apocalyptic number.

It is an amenable number.

27027012 is an abundant number, since it is smaller than the sum of its proper divisors (36036044).

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

27027012 is a wasteful number, since it uses less digits than its factorization.

27027012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252258 (or 2252256 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 27027012 is about 5198.7510038470. The cubic root of 27027012 is about 300.1000111000.

Adding to 27027012 its reverse (21072072), we get a palindrome (48099084).

The spelling of 27027012 in words is "twenty-seven million, twenty-seven thousand, twelve".