27865249 has 8 divisors (see below), whose sum is σ = 28892160. Its totient is φ = 26846400.

The previous prime is 27865241. The next prime is 27865273. The reversal of 27865249 is 94256872.

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

It is a cyclic number.

It is not a de Polignac number, because 27865249 - 2³ = 27865241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27865241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5529 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (3611520).

Almost surely, 2^27865249 is an apocalyptic number.

It is an amenable number.

27865249 is a deficient number, since it is larger than the sum of its proper divisors (1026911).

27865249 is a wasteful number, since it uses less digits than its factorization.

27865249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031.

The product of its digits is 241920, while the sum is 43.

The square root of 27865249 is about 5278.7544932493. The cubic root of 27865249 is about 303.1709905633.

The spelling of 27865249 in words is "twenty-seven million, eight hundred sixty-five thousand, two hundred forty-nine".