27838491 has 8 divisors (see below), whose sum is σ = 37458960. Its totient is φ = 18388512.

The previous prime is 27838483. The next prime is 27838507. The reversal of 27838491 is 19483872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27838491 - 2³ = 27838483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27838411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42240 + ... + 42893.

It is an arithmetic number, because the mean of its divisors is an integer number (4682370).

Almost surely, 2^27838491 is an apocalyptic number.

27838491 is a deficient number, since it is larger than the sum of its proper divisors (9620469).

27838491 is a wasteful number, since it uses less digits than its factorization.

27838491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85245.

The product of its digits is 96768, while the sum is 42.

The square root of 27838491 is about 5276.2193851280. The cubic root of 27838491 is about 303.0739180724.

The spelling of 27838491 in words is "twenty-seven million, eight hundred thirty-eight thousand, four hundred ninety-one".