27970289 has 8 divisors (see below), whose sum is σ = 28527360. Its totient is φ = 27417456.

The previous prime is 27970279. The next prime is 27970291. The reversal of 27970289 is 98207972.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27970289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27970249) 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, 14432 + ... + 16254.

It is an arithmetic number, because the mean of its divisors is an integer number (3565920).

Almost surely, 2^27970289 is an apocalyptic number.

It is an amenable number.

27970289 is a deficient number, since it is larger than the sum of its proper divisors (557071).

27970289 is a wasteful number, since it uses less digits than its factorization.

27970289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 27970289 is about 5288.6944513746. The cubic root of 27970289 is about 303.5514543009.

The spelling of 27970289 in words is "twenty-seven million, nine hundred seventy thousand, two hundred eighty-nine".