27855998 has 8 divisors (see below), whose sum is σ = 42372720. Its totient is φ = 13731760.

The previous prime is 27855991. The next prime is 27856099. The reversal of 27855998 is 89955872.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27855991) 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 3 ways as a sum of consecutive naturals, for example, 97943 + ... + 98226.

It is an arithmetic number, because the mean of its divisors is an integer number (5296590).

Almost surely, 2^27855998 is an apocalyptic number.

27855998 is a deficient number, since it is larger than the sum of its proper divisors (14516722).

27855998 is a wasteful number, since it uses less digits than its factorization.

27855998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196242.

The product of its digits is 1814400, while the sum is 53.

The square root of 27855998 is about 5277.8781721446. The cubic root of 27855998 is about 303.1374368795.

The spelling of 27855998 in words is "twenty-seven million, eight hundred fifty-five thousand, nine hundred ninety-eight".