27698497 has 2 divisors, whose sum is σ = 27698498. Its totient is φ = 27698496.

The previous prime is 27698483. The next prime is 27698501. The reversal of 27698497 is 79489672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27290176 + 408321 = 5224^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 27698497 - 2¹⁹ = 27174209 is a prime.

It is not a weakly prime, because it can be changed into another prime (27698467) 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, 13849248 + 13849249.

It is an arithmetic number, because the mean of its divisors is an integer number (13849249).

Almost surely, 2^27698497 is an apocalyptic number.

It is an amenable number.

27698497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27698497 is an equidigital number, since it uses as much as digits as its factorization.

27698497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 27698497 is about 5262.9361576975. The cubic root of 27698497 is about 302.5650321217.

The spelling of 27698497 in words is "twenty-seven million, six hundred ninety-eight thousand, four hundred ninety-seven".