27270216 has 64 divisors (see below), whose sum is σ = 76262400. Its totient is φ = 9028800.

The previous prime is 27270211. The next prime is 27270239. The reversal of 27270216 is 61207272.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 27270216.

It is not an unprimeable number, because it can be changed into a prime (27270211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40926 + ... + 41586.

It is an arithmetic number, because the mean of its divisors is an integer number (1191600).

Almost surely, 2^27270216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27270216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38131200).

27270216 is an abundant number, since it is smaller than the sum of its proper divisors (48992184).

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

27270216 is a wasteful number, since it uses less digits than its factorization.

27270216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 857 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 27270216 is about 5222.0892370774. The cubic root of 27270216 is about 300.9974797712.

Adding to 27270216 its reverse (61207272), we get a palindrome (88477488).

The spelling of 27270216 in words is "twenty-seven million, two hundred seventy thousand, two hundred sixteen".