27276013 has 2 divisors, whose sum is σ = 27276014. Its totient is φ = 27276012.

The previous prime is 27275981. The next prime is 27276031. The reversal of 27276013 is 31067272.

Together with next prime (27276031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25431849 + 1844164 = 5043^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 27276013 - 2⁵ = 27275981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27276043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13638006 + 13638007.

It is an arithmetic number, because the mean of its divisors is an integer number (13638007).

Almost surely, 2^27276013 is an apocalyptic number.

It is an amenable number.

27276013 is a deficient number, since it is larger than the sum of its proper divisors (1).

27276013 is an equidigital number, since it uses as much as digits as its factorization.

27276013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 27276013 is about 5222.6442536324. The cubic root of 27276013 is about 301.0188065644.

The spelling of 27276013 in words is "twenty-seven million, two hundred seventy-six thousand, thirteen".