27073813 has 8 divisors (see below), whose sum is σ = 29635256. Its totient is φ = 24580800.

The previous prime is 27073807. The next prime is 27073903. The reversal of 27073813 is 31837072.

It can be written as a sum of positive squares in 4 ways, for example, as 272484 + 26801329 = 522^2 + 5177^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27073813 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 (27073913) 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 7 ways as a sum of consecutive naturals, for example, 16278 + ... + 17863.

It is an arithmetic number, because the mean of its divisors is an integer number (3704407).

Almost surely, 2^27073813 is an apocalyptic number.

It is an amenable number.

27073813 is a deficient number, since it is larger than the sum of its proper divisors (2561443).

27073813 is a wasteful number, since it uses less digits than its factorization.

27073813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34215.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 27073813 is about 5203.2502342286. The cubic root of 27073813 is about 300.2731327344.

The spelling of 27073813 in words is "twenty-seven million, seventy-three thousand, eight hundred thirteen".