27670087 has 4 divisors (see below), whose sum is σ = 27690160. Its totient is φ = 27650016.

The previous prime is 27670057. The next prime is 27670103. The reversal of 27670087 is 78007672.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27670087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27670007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7803 + ... + 10780.

It is an arithmetic number, because the mean of its divisors is an integer number (6922540).

Almost surely, 2^27670087 is an apocalyptic number.

27670087 is a deficient number, since it is larger than the sum of its proper divisors (20073).

27670087 is a wasteful number, since it uses less digits than its factorization.

27670087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20072.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 27670087 is about 5260.2364015318. The cubic root of 27670087 is about 302.4615510178.

The spelling of 27670087 in words is "twenty-seven million, six hundred seventy thousand, eighty-seven".