27627121 has 4 divisors (see below), whose sum is σ = 29081200. Its totient is φ = 26173044.

The previous prime is 27627101. The next prime is 27627143. The reversal of 27627121 is 12172672.

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 27627121 - 2⁹ = 27626609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27627121.

It is not an unprimeable number, because it can be changed into a prime (27627101) 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 3 ways as a sum of consecutive naturals, for example, 727011 + ... + 727048.

It is an arithmetic number, because the mean of its divisors is an integer number (7270300).

Almost surely, 2^27627121 is an apocalyptic number.

It is an amenable number.

27627121 is a deficient number, since it is larger than the sum of its proper divisors (1454079).

27627121 is a wasteful number, since it uses less digits than its factorization.

27627121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454078.

The product of its digits is 2352, while the sum is 28.

The square root of 27627121 is about 5256.1507778982. The cubic root of 27627121 is about 302.3049162219.

Adding to 27627121 its reverse (12172672), we get a palindrome (39799793).

The spelling of 27627121 in words is "twenty-seven million, six hundred twenty-seven thousand, one hundred twenty-one".