27968559 has 8 divisors (see below), whose sum is σ = 38299440. Its totient is φ = 18141696.

The previous prime is 27968527. The next prime is 27968573. The reversal of 27968559 is 95586972.

It is a happy number.

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

It is not a de Polignac number, because 27968559 - 2⁵ = 27968527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27968509) 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 7 ways as a sum of consecutive naturals, for example, 125874 + ... + 126095.

It is an arithmetic number, because the mean of its divisors is an integer number (4787430).

Almost surely, 2^27968559 is an apocalyptic number.

27968559 is a deficient number, since it is larger than the sum of its proper divisors (10330881).

27968559 is a wasteful number, since it uses less digits than its factorization.

27968559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252009.

The product of its digits is 1360800, while the sum is 51.

The square root of 27968559 is about 5288.5308924124. The cubic root of 27968559 is about 303.5451958166.

The spelling of 27968559 in words is "twenty-seven million, nine hundred sixty-eight thousand, five hundred fifty-nine".