27081684 has 36 divisors (see below), whose sum is σ = 78236704. Its totient is φ = 7737552.

The previous prime is 27081683. The next prime is 27081709. The reversal of 27081684 is 48618072.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27081683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53482 + ... + 53985.

Almost surely, 2^27081684 is an apocalyptic number.

It is an amenable number.

27081684 is an abundant number, since it is smaller than the sum of its proper divisors (51155020).

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

27081684 is a wasteful number, since it uses less digits than its factorization.

27081684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107484 (or 107479 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 27081684 is about 5204.0065334317. The cubic root of 27081684 is about 300.3022287570.

The spelling of 27081684 in words is "twenty-seven million, eighty-one thousand, six hundred eighty-four".