27741121 has 4 divisors (see below), whose sum is σ = 29201200. Its totient is φ = 26281044.

The previous prime is 27741113. The next prime is 27741137. The reversal of 27741121 is 12114772.

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 27741121 - 2³ = 27741113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27741521) 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, 730011 + ... + 730048.

It is an arithmetic number, because the mean of its divisors is an integer number (7300300).

Almost surely, 2^27741121 is an apocalyptic number.

It is an amenable number.

27741121 is a deficient number, since it is larger than the sum of its proper divisors (1460079).

27741121 is a wasteful number, since it uses less digits than its factorization.

27741121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460078.

The product of its digits is 784, while the sum is 25.

The square root of 27741121 is about 5266.9840516182. The cubic root of 27741121 is about 302.7201539234.

Adding to 27741121 its reverse (12114772), we get a palindrome (39855893).

The spelling of 27741121 in words is "twenty-seven million, seven hundred forty-one thousand, one hundred twenty-one".