27322649 has 2 divisors, whose sum is σ = 27322650. Its totient is φ = 27322648.

The previous prime is 27322591. The next prime is 27322657. The reversal of 27322649 is 94622372.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 7252249 = 4480^2 + 2693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27322649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27322679) 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, 13661324 + 13661325.

It is an arithmetic number, because the mean of its divisors is an integer number (13661325).

Almost surely, 2^27322649 is an apocalyptic number.

It is an amenable number.

27322649 is a deficient number, since it is larger than the sum of its proper divisors (1).

27322649 is an equidigital number, since it uses as much as digits as its factorization.

27322649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 27322649 is about 5227.1071349265. The cubic root of 27322649 is about 301.1902675943.

It can be divided in two parts, 273 and 22649, that added together give a palindrome (22922).

The spelling of 27322649 in words is "twenty-seven million, three hundred twenty-two thousand, six hundred forty-nine".