27634897 has 2 divisors, whose sum is σ = 27634898. Its totient is φ = 27634896.

The previous prime is 27634823. The next prime is 27634909. The reversal of 27634897 is 79843672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23270976 + 4363921 = 4824^2 + 2089^2 .

It is a cyclic number.

It is not a de Polignac number, because 27634897 - 2¹⁹ = 27110609 is a prime.

It is not a weakly prime, because it can be changed into another prime (27634297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13817448 + 13817449.

It is an arithmetic number, because the mean of its divisors is an integer number (13817449).

Almost surely, 2^27634897 is an apocalyptic number.

It is an amenable number.

27634897 is a deficient number, since it is larger than the sum of its proper divisors (1).

27634897 is an equidigital number, since it uses as much as digits as its factorization.

27634897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 27634897 is about 5256.8904306634. The cubic root of 27634897 is about 302.3332760658. Note that the first 3 decimals are identical.

The spelling of 27634897 in words is "twenty-seven million, six hundred thirty-four thousand, eight hundred ninety-seven".