27349457 has 2 divisors, whose sum is σ = 27349458. Its totient is φ = 27349456.

The previous prime is 27349429. The next prime is 27349459. The reversal of 27349457 is 75494372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24760576 + 2588881 = 4976^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 27349457 - 2⁶ = 27349393 is a prime.

Together with 27349459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27349459) 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, 13674728 + 13674729.

It is an arithmetic number, because the mean of its divisors is an integer number (13674729).

Almost surely, 2^27349457 is an apocalyptic number.

It is an amenable number.

27349457 is a deficient number, since it is larger than the sum of its proper divisors (1).

27349457 is an equidigital number, since it uses as much as digits as its factorization.

27349457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 27349457 is about 5229.6708309415. The cubic root of 27349457 is about 301.2887410792.

The spelling of 27349457 in words is "twenty-seven million, three hundred forty-nine thousand, four hundred fifty-seven".