27796289 has 2 divisors, whose sum is σ = 27796290. Its totient is φ = 27796288.

The previous prime is 27796271. The next prime is 27796303. The reversal of 27796289 is 98269772.

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., 14691889 + 13104400 = 3833^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 27796289 - 2⁸ = 27796033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27796789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13898144 + 13898145.

It is an arithmetic number, because the mean of its divisors is an integer number (13898145).

Almost surely, 2^27796289 is an apocalyptic number.

It is an amenable number.

27796289 is a deficient number, since it is larger than the sum of its proper divisors (1).

27796289 is an equidigital number, since it uses as much as digits as its factorization.

27796289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 27796289 is about 5272.2186032068. The cubic root of 27796289 is about 302.9206914465.

The spelling of 27796289 in words is "twenty-seven million, seven hundred ninety-six thousand, two hundred eighty-nine".