27242641 has 4 divisors (see below), whose sum is σ = 27253732. Its totient is φ = 27231552.

The previous prime is 27242639. The next prime is 27242647. The reversal of 27242641 is 14624272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11082241 + 16160400 = 3329^2 + 4020^2 .

It is a cyclic number.

It is not a de Polignac number, because 27242641 - 2¹ = 27242639 is a prime.

It is a super-2 number, since 2×27242641² = 1484322977309762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27242647) 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, 36 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (6813433).

Almost surely, 2^27242641 is an apocalyptic number.

It is an amenable number.

27242641 is a deficient number, since it is larger than the sum of its proper divisors (11091).

27242641 is an equidigital number, since it uses as much as digits as its factorization.

27242641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090.

The product of its digits is 5376, while the sum is 28.

The square root of 27242641 is about 5219.4483424975. The cubic root of 27242641 is about 300.8959917025.

The spelling of 27242641 in words is "twenty-seven million, two hundred forty-two thousand, six hundred forty-one".