27010989 has 20 divisors (see below), whose sum is σ = 42475840. Its totient is φ = 17058600.

The previous prime is 27010987. The next prime is 27011003. The reversal of 27010989 is 98901072.

It is a happy number.

It is not a de Polignac number, because 27010989 - 2¹ = 27010987 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

27010989 is a modest number, since divided by 10989 gives 27 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27010981) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7237 + ... + 10314.

It is an arithmetic number, because the mean of its divisors is an integer number (2123792).

Almost surely, 2^27010989 is an apocalyptic number.

It is an amenable number.

27010989 is a deficient number, since it is larger than the sum of its proper divisors (15464851).

27010989 is a wasteful number, since it uses less digits than its factorization.

27010989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17582 (or 17573 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 27010989 is about 5197.2097321544. The cubic root of 27010989 is about 300.0406944796.

The spelling of 27010989 in words is "twenty-seven million, ten thousand, nine hundred eighty-nine".