27850009 has 8 divisors (see below), whose sum is σ = 30477600. Its totient is φ = 25238400.

The previous prime is 27850007. The next prime is 27850013. The reversal of 27850009 is 90005872.

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

It is not a de Polignac number, because 27850009 - 2¹ = 27850007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27850003) 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, 184 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (3809700).

Almost surely, 2^27850009 is an apocalyptic number.

It is an amenable number.

27850009 is a deficient number, since it is larger than the sum of its proper divisors (2627591).

27850009 is a wasteful number, since it uses less digits than its factorization.

27850009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 27850009 is about 5277.3107734906. The cubic root of 27850009 is about 303.1157106162.

The spelling of 27850009 in words is "twenty-seven million, eight hundred fifty thousand, nine".