27058681 has 4 divisors (see below), whose sum is σ = 29140132. Its totient is φ = 24977232.

The previous prime is 27058667. The next prime is 27058693. The reversal of 27058681 is 18685072.

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 14745600 + 12313081 = 3840^2 + 3509^2 .

It is a cyclic number.

It is not a de Polignac number, because 27058681 - 2¹³ = 27050489 is a prime.

It is a super-2 number, since 2×27058681² = 1464344434919522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27058681.

It is not an unprimeable number, because it can be changed into a prime (27058621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040706 + ... + 1040731.

It is an arithmetic number, because the mean of its divisors is an integer number (7285033).

Almost surely, 2^27058681 is an apocalyptic number.

It is an amenable number.

27058681 is a deficient number, since it is larger than the sum of its proper divisors (2081451).

27058681 is a wasteful number, since it uses less digits than its factorization.

27058681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081450.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 27058681 is about 5201.7959398654. The cubic root of 27058681 is about 300.2171797756.

The spelling of 27058681 in words is "twenty-seven million, fifty-eight thousand, six hundred eighty-one".