27666716 has 48 divisors (see below), whose sum is σ = 61797120. Its totient is φ = 10523520.

The previous prime is 27666671. The next prime is 27666721. The reversal of 27666716 is 61766672.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 12200 + ... + 14288.

It is an arithmetic number, because the mean of its divisors is an integer number (1287440).

Almost surely, 2^27666716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27666716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30898560).

27666716 is an abundant number, since it is smaller than the sum of its proper divisors (34130404).

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

27666716 is a wasteful number, since it uses less digits than its factorization.

27666716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154 (or 2152 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 27666716 is about 5259.9159689105. The cubic root of 27666716 is about 302.4492677256.

It can be divided in two parts, 27666 and 716, that added together give a palindrome (28382).

The spelling of 27666716 in words is "twenty-seven million, six hundred sixty-six thousand, seven hundred sixteen".