27384491 has 4 divisors (see below), whose sum is σ = 28825800. Its totient is φ = 25943184.

The previous prime is 27384463. The next prime is 27384521. The reversal of 27384491 is 19448372.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27384491 - 2¹⁰ = 27383467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27384991) 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, 720626 + ... + 720663.

It is an arithmetic number, because the mean of its divisors is an integer number (7206450).

Almost surely, 2^27384491 is an apocalyptic number.

27384491 is a deficient number, since it is larger than the sum of its proper divisors (1441309).

27384491 is a wasteful number, since it uses less digits than its factorization.

27384491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441308.

The product of its digits is 48384, while the sum is 38.

The square root of 27384491 is about 5233.0193005568. The cubic root of 27384491 is about 301.4173340760.

The spelling of 27384491 in words is "twenty-seven million, three hundred eighty-four thousand, four hundred ninety-one".