27906568 has 16 divisors (see below), whose sum is σ = 53601660. Its totient is φ = 13612800.

The previous prime is 27906559. The next prime is 27906569. The reversal of 27906568 is 86560972.

It can be written as a sum of positive squares in 2 ways, for example, as 27857284 + 49284 = 5278^2 + 222^2 .

It is not an unprimeable number, because it can be changed into a prime (27906569) 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, 42213 + ... + 42868.

Almost surely, 2^27906568 is an apocalyptic number.

It is an amenable number.

27906568 is a deficient number, since it is larger than the sum of its proper divisors (25695092).

27906568 is a wasteful number, since it uses less digits than its factorization.

27906568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85128 (or 85124 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 27906568 is about 5282.6667507993. Note that the first 3 decimals coincide. The cubic root of 27906568 is about 303.3207653556.

The spelling of 27906568 in words is "twenty-seven million, nine hundred six thousand, five hundred sixty-eight".