27993241 has 4 divisors (see below), whose sum is σ = 28387584. Its totient is φ = 27598900.

The previous prime is 27993223. The next prime is 27993263. The reversal of 27993241 is 14239972.

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 27993241 - 2⁵ = 27993209 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 27993241.

It is not an unprimeable number, because it can be changed into a prime (27993281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197065 + ... + 197206.

It is an arithmetic number, because the mean of its divisors is an integer number (7096896).

Almost surely, 2^27993241 is an apocalyptic number.

It is an amenable number.

27993241 is a deficient number, since it is larger than the sum of its proper divisors (394343).

27993241 is an equidigital number, since it uses as much as digits as its factorization.

27993241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394342.

The product of its digits is 27216, while the sum is 37.

The square root of 27993241 is about 5290.8639181139. The cubic root of 27993241 is about 303.6344615250.

The spelling of 27993241 in words is "twenty-seven million, nine hundred ninety-three thousand, two hundred forty-one".