27389089 has 48 divisors (see below), whose sum is σ = 37793280. Its totient is φ = 19595520.

The previous prime is 27389077. The next prime is 27389093. The reversal of 27389089 is 98098372.

27389089 = T₃₄₂ + T₃₄₃ + ... + T₅₈₈.

It is not a de Polignac number, because 27389089 - 2⁷ = 27388961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27389009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375157 + ... + 375229.

It is an arithmetic number, because the mean of its divisors is an integer number (787360).

Almost surely, 2^27389089 is an apocalyptic number.

It is an amenable number.

27389089 is a deficient number, since it is larger than the sum of its proper divisors (10404191).

27389089 is a wasteful number, since it uses less digits than its factorization.

27389089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 27389089 is about 5233.4586078424. The cubic root of 27389089 is about 301.4342029835.

The spelling of 27389089 in words is "twenty-seven million, three hundred eighty-nine thousand, eighty-nine".