27379013 has 2 divisors, whose sum is σ = 27379014. Its totient is φ = 27379012.

The previous prime is 27378997. The next prime is 27379031. The reversal of 27379013 is 31097372.

Together with next prime (27379031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26863489 + 515524 = 5183^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 27379013 - 2⁴ = 27378997 is a prime.

It is a super-2 number, since 2×27379013² = 1499220705708338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27379043) 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 as a sum of consecutive naturals, namely, 13689506 + 13689507.

It is an arithmetic number, because the mean of its divisors is an integer number (13689507).

Almost surely, 2^27379013 is an apocalyptic number.

It is an amenable number.

27379013 is a deficient number, since it is larger than the sum of its proper divisors (1).

27379013 is an equidigital number, since it uses as much as digits as its factorization.

27379013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 27379013 is about 5232.4958671747. The cubic root of 27379013 is about 301.3972342043.

The spelling of 27379013 in words is "twenty-seven million, three hundred seventy-nine thousand, thirteen".