27898229 has 2 divisors, whose sum is σ = 27898230. Its totient is φ = 27898228.

The previous prime is 27898187. The next prime is 27898237. The reversal of 27898229 is 92289872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25654225 + 2244004 = 5065^2 + 1498^2 .

It is a cyclic number.

It is not a de Polignac number, because 27898229 - 2¹² = 27894133 is a prime.

It is a super-2 number, since 2×27898229² = 1556622362672882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27898279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13949114 + 13949115.

It is an arithmetic number, because the mean of its divisors is an integer number (13949115).

Almost surely, 2^27898229 is an apocalyptic number.

It is an amenable number.

27898229 is a deficient number, since it is larger than the sum of its proper divisors (1).

27898229 is an equidigital number, since it uses as much as digits as its factorization.

27898229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 27898229 is about 5281.8774124358. The cubic root of 27898229 is about 303.2905497227.

The spelling of 27898229 in words is "twenty-seven million, eight hundred ninety-eight thousand, two hundred twenty-nine".