27326261 has 2 divisors, whose sum is σ = 27326262. Its totient is φ = 27326260.

The previous prime is 27326251. The next prime is 27326269. The reversal of 27326261 is 16262372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17901361 + 9424900 = 4231^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 27326261 - 2¹⁰ = 27325237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27326269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13663130 + 13663131.

It is an arithmetic number, because the mean of its divisors is an integer number (13663131).

Almost surely, 2^27326261 is an apocalyptic number.

It is an amenable number.

27326261 is a deficient number, since it is larger than the sum of its proper divisors (1).

27326261 is an equidigital number, since it uses as much as digits as its factorization.

27326261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 29.

The square root of 27326261 is about 5227.4526301058. The cubic root of 27326261 is about 301.2035392614.

The spelling of 27326261 in words is "twenty-seven million, three hundred twenty-six thousand, two hundred sixty-one".