27882839 has 4 divisors (see below), whose sum is σ = 29523024. Its totient is φ = 26242656.

The previous prime is 27882781. The next prime is 27882853. The reversal of 27882839 is 93828872.

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 27882839 - 2²⁰ = 26834263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27882793 and 27882802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27882889) 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, 820067 + ... + 820100.

It is an arithmetic number, because the mean of its divisors is an integer number (7380756).

Almost surely, 2^27882839 is an apocalyptic number.

27882839 is a deficient number, since it is larger than the sum of its proper divisors (1640185).

27882839 is a wasteful number, since it uses less digits than its factorization.

27882839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640184.

The product of its digits is 387072, while the sum is 47.

The square root of 27882839 is about 5280.4203431166. The cubic root of 27882839 is about 303.2347695975.

The spelling of 27882839 in words is "twenty-seven million, eight hundred eighty-two thousand, eight hundred thirty-nine".