27135990 has 96 divisors (see below), whose sum is σ = 84913920. Its totient is φ = 5873472.

The previous prime is 27135989. The next prime is 27136003. The reversal of 27135990 is 9953172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10837 + ... + 13103.

It is an arithmetic number, because the mean of its divisors is an integer number (884520).

Almost surely, 2^27135990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27135990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42456960).

27135990 is an abundant number, since it is smaller than the sum of its proper divisors (57777930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27135990 is a wasteful number, since it uses less digits than its factorization.

27135990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 27135990 is about 5209.2216309157. The cubic root of 27135990 is about 300.5028234245.

The spelling of 27135990 in words is "twenty-seven million, one hundred thirty-five thousand, nine hundred ninety".