27016321 has 4 divisors (see below), whose sum is σ = 27129600. Its totient is φ = 26903044.

The previous prime is 27016267. The next prime is 27016337. The reversal of 27016321 is 12361072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27016321 - 2¹⁷ = 26885249 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27016292 and 27016301.

It is not an unprimeable number, because it can be changed into a prime (27016361) 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, 56281 + ... + 56758.

It is an arithmetic number, because the mean of its divisors is an integer number (6782400).

Almost surely, 2^27016321 is an apocalyptic number.

It is an amenable number.

27016321 is a deficient number, since it is larger than the sum of its proper divisors (113279).

27016321 is a wasteful number, since it uses less digits than its factorization.

27016321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113278.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 27016321 is about 5197.7226744027. The cubic root of 27016321 is about 300.0604359723.

Adding to 27016321 its reverse (12361072), we get a palindrome (39377393).

The spelling of 27016321 in words is "twenty-seven million, sixteen thousand, three hundred twenty-one".