27388239 has 8 divisors (see below), whose sum is σ = 38105472. Its totient is φ = 17464920.

The previous prime is 27388199. The next prime is 27388243. The reversal of 27388239 is 93288372.

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

It is not a de Polignac number, because 27388239 - 2⁷ = 27388111 is a prime.

It is a super-2 number, since 2×27388239² = 1500231271042242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27388239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27388259) 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, 198397 + ... + 198534.

It is an arithmetic number, because the mean of its divisors is an integer number (4763184).

Almost surely, 2^27388239 is an apocalyptic number.

27388239 is a deficient number, since it is larger than the sum of its proper divisors (10717233).

27388239 is a wasteful number, since it uses less digits than its factorization.

27388239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396957.

The product of its digits is 145152, while the sum is 42.

The square root of 27388239 is about 5233.3773989652. The cubic root of 27388239 is about 301.4310846892.

The spelling of 27388239 in words is "twenty-seven million, three hundred eighty-eight thousand, two hundred thirty-nine".