27695868 has 12 divisors (see below), whose sum is σ = 64623720. Its totient is φ = 9231952.

The previous prime is 27695861. The next prime is 27695897. The reversal of 27695868 is 86859672.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×27695868² = 1534122208546848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27695868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27695861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153983 + ... + 1154006.

It is an arithmetic number, because the mean of its divisors is an integer number (5385310).

Almost surely, 2^27695868 is an apocalyptic number.

It is an amenable number.

27695868 is an abundant number, since it is smaller than the sum of its proper divisors (36927852).

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

27695868 is a wasteful number, since it uses less digits than its factorization.

27695868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307996 (or 2307994 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 27695868 is about 5262.6863862480. The cubic root of 27695868 is about 302.5554591758. Note that the first 3 decimals are identical.

The spelling of 27695868 in words is "twenty-seven million, six hundred ninety-five thousand, eight hundred sixty-eight".