27966061 has 6 divisors (see below), whose sum is σ = 28898286. Its totient is φ = 27063000.

The previous prime is 27966049. The next prime is 27966077. The reversal of 27966061 is 16066972.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 12709225 = 3906^2 + 3565^2 .

It is a de Polignac number, because none of the positive numbers 2^k-27966061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27966061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27966161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13590 + ... + 15511.

It is an arithmetic number, because the mean of its divisors is an integer number (4816381).

Almost surely, 2^27966061 is an apocalyptic number.

It is an amenable number.

27966061 is a deficient number, since it is larger than the sum of its proper divisors (932225).

27966061 is an equidigital number, since it uses as much as digits as its factorization.

27966061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29163 (or 29132 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 27966061 is about 5288.2947156905. The cubic root of 27966061 is about 303.5361585440.

The spelling of 27966061 in words is "twenty-seven million, nine hundred sixty-six thousand, sixty-one".