27868923 has 6 divisors (see below), whose sum is σ = 40255124. Its totient is φ = 18579276.

The previous prime is 27868921. The next prime is 27868927. The reversal of 27868923 is 32986872.

It is not a de Polignac number, because 27868923 - 2¹ = 27868921 is a prime.

It is a super-3 number, since 3×27868923³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27868921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1548265 + ... + 1548282.

Almost surely, 2^27868923 is an apocalyptic number.

27868923 is a deficient number, since it is larger than the sum of its proper divisors (12386201).

27868923 is a wasteful number, since it uses less digits than its factorization.

27868923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096553 (or 3096550 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 27868923 is about 5279.1024805359. The cubic root of 27868923 is about 303.1843142228.

The spelling of 27868923 in words is "twenty-seven million, eight hundred sixty-eight thousand, nine hundred twenty-three".