27683045 has 18 divisors (see below), whose sum is σ = 36171414. Its totient is φ = 20329920.

The previous prime is 27683039. The next prime is 27683063. The reversal of 27683045 is 54038672.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 27646564 + 36481 = 5258^2 + 191^2 .

It is not a de Polignac number, because 27683045 - 2²⁰ = 26634469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27682996 and 27683014.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 152855 + ... + 153035.

It is an arithmetic number, because the mean of its divisors is an integer number (2009523).

Almost surely, 2^27683045 is an apocalyptic number.

It is an amenable number.

27683045 is a deficient number, since it is larger than the sum of its proper divisors (8488369).

27683045 is an equidigital number, since it uses as much as digits as its factorization.

27683045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 27683045 is about 5261.4679510570. The cubic root of 27683045 is about 302.5087582556.

The spelling of 27683045 in words is "twenty-seven million, six hundred eighty-three thousand, forty-five".