27661706 has 8 divisors (see below), whose sum is σ = 41658624. Its totient is φ = 13775500.

The previous prime is 27661691. The next prime is 27661717. The reversal of 27661706 is 60716672.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27050 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (5207328).

Almost surely, 2^27661706 is an apocalyptic number.

27661706 is a deficient number, since it is larger than the sum of its proper divisors (13996918).

27661706 is a wasteful number, since it uses less digits than its factorization.

27661706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55356.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 27661706 is about 5259.4397039989. The cubic root of 27661706 is about 302.4310103810.

The spelling of 27661706 in words is "twenty-seven million, six hundred sixty-one thousand, seven hundred six".