27745212 has 24 divisors (see below), whose sum is σ = 70624512. Its totient is φ = 8407600.

The previous prime is 27745189. The next prime is 27745261. The reversal of 27745212 is 21254772.

It is a self number, because there is not a number n which added to its sum of digits gives 27745212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104964 + ... + 105227.

It is an arithmetic number, because the mean of its divisors is an integer number (2942688).

Almost surely, 2^27745212 is an apocalyptic number.

27745212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27745212 is an abundant number, since it is smaller than the sum of its proper divisors (42879300).

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

27745212 is a wasteful number, since it uses less digits than its factorization.

27745212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210209 (or 210207 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 27745212 is about 5267.3723999733. The cubic root of 27745212 is about 302.7350339670.

Adding to 27745212 its reverse (21254772), we get a palindrome (48999984).

The spelling of 27745212 in words is "twenty-seven million, seven hundred forty-five thousand, two hundred twelve".