27950117 has 4 divisors (see below), whose sum is σ = 30100140. Its totient is φ = 25800096.

The previous prime is 27950093. The next prime is 27950123. The reversal of 27950117 is 71105972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7392961 + 20557156 = 2719^2 + 4534^2 .

It is a cyclic number.

It is not a de Polignac number, because 27950117 - 2⁸ = 27949861 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 (27950177) 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 3 ways as a sum of consecutive naturals, for example, 1074992 + ... + 1075017.

It is an arithmetic number, because the mean of its divisors is an integer number (7525035).

Almost surely, 2^27950117 is an apocalyptic number.

It is an amenable number.

27950117 is a deficient number, since it is larger than the sum of its proper divisors (2150023).

27950117 is a wasteful number, since it uses less digits than its factorization.

27950117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150022.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 27950117 is about 5286.7870204880. The cubic root of 27950117 is about 303.4784636054.

The spelling of 27950117 in words is "twenty-seven million, nine hundred fifty thousand, one hundred seventeen".