27908061 has 16 divisors (see below), whose sum is σ = 37822464. Its totient is φ = 18302384.

The previous prime is 27908059. The next prime is 27908071. The reversal of 27908061 is 16080972.

It is a cyclic number.

It is not a de Polignac number, because 27908061 - 2¹ = 27908059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27908011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72676 + ... + 73058.

It is an arithmetic number, because the mean of its divisors is an integer number (2363904).

Almost surely, 2^27908061 is an apocalyptic number.

It is an amenable number.

27908061 is a deficient number, since it is larger than the sum of its proper divisors (9914403).

27908061 is a wasteful number, since it uses less digits than its factorization.

27908061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 27908061 is about 5282.8080601135. The cubic root of 27908061 is about 303.3261744745.

The spelling of 27908061 in words is "twenty-seven million, nine hundred eight thousand, sixty-one".