27673489 has 4 divisors (see below), whose sum is σ = 27685156. Its totient is φ = 27661824.

The previous prime is 27673469. The next prime is 27673507. The reversal of 27673489 is 98437672.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22420225 + 5253264 = 4735^2 + 2292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27673489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27673469) 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 3 ways as a sum of consecutive naturals, for example, 864 + ... + 7489.

It is an arithmetic number, because the mean of its divisors is an integer number (6921289).

Almost surely, 2^27673489 is an apocalyptic number.

It is an amenable number.

27673489 is a deficient number, since it is larger than the sum of its proper divisors (11667).

27673489 is an equidigital number, since it uses as much as digits as its factorization.

27673489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11666.

The product of its digits is 508032, while the sum is 46.

The square root of 27673489 is about 5260.5597610901. The cubic root of 27673489 is about 302.4739462569.

The spelling of 27673489 in words is "twenty-seven million, six hundred seventy-three thousand, four hundred eighty-nine".