27949061 has 6 divisors (see below), whose sum is σ = 32512230. Its totient is φ = 23956296.

The previous prime is 27949027. The next prime is 27949087. The reversal of 27949061 is 16094972.

It can be written as a sum of positive squares in only one way, i.e., 21669025 + 6280036 = 4655^2 + 2506^2 .

It is not a de Polignac number, because 27949061 - 2⁶ = 27948997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27949001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 285146 + ... + 285243.

It is an arithmetic number, because the mean of its divisors is an integer number (5418705).

Almost surely, 2^27949061 is an apocalyptic number.

It is an amenable number.

27949061 is a deficient number, since it is larger than the sum of its proper divisors (4563169).

27949061 is an equidigital number, since it uses as much as digits as its factorization.

27949061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570403 (or 570396 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 27949061 is about 5286.6871479217. The cubic root of 27949061 is about 303.4746415905.

The spelling of 27949061 in words is "twenty-seven million, nine hundred forty-nine thousand, sixty-one".