27068905 has 16 divisors (see below), whose sum is σ = 33436800. Its totient is φ = 21028480.

The previous prime is 27068903. The next prime is 27068969. The reversal of 27068905 is 50986072.

It is not a de Polignac number, because 27068905 - 2¹ = 27068903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27068903) 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 15 ways as a sum of consecutive naturals, for example, 25740 + ... + 26770.

It is an arithmetic number, because the mean of its divisors is an integer number (2089800).

Almost surely, 2^27068905 is an apocalyptic number.

It is an amenable number.

27068905 is a deficient number, since it is larger than the sum of its proper divisors (6367895).

27068905 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (27068904) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (1184).

27068905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 27068905 is about 5202.7785845642. The cubic root of 27068905 is about 300.2549869145.

It can be divided in two parts, 2706 and 8905, that added together give a palindrome (11611).

The spelling of 27068905 in words is "twenty-seven million, sixty-eight thousand, nine hundred five".