27216201 has 16 divisors (see below), whose sum is σ = 39464064. Its totient is φ = 16614144.

The previous prime is 27216197. The next prime is 27216209. The reversal of 27216201 is 10261272.

It is not a de Polignac number, because 27216201 - 2² = 27216197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27216209) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5325 + ... + 9098.

It is an arithmetic number, because the mean of its divisors is an integer number (2466504).

Almost surely, 2^27216201 is an apocalyptic number.

It is an amenable number.

27216201 is a deficient number, since it is larger than the sum of its proper divisors (12247863).

27216201 is a wasteful number, since it uses less digits than its factorization.

27216201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14480.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 27216201 is about 5216.9148929228. The cubic root of 27216201 is about 300.7986165964.

Adding to 27216201 its reverse (10261272), we get a palindrome (37477473).

The spelling of 27216201 in words is "twenty-seven million, two hundred sixteen thousand, two hundred one".