27889699 has 2 divisors, whose sum is σ = 27889700. Its totient is φ = 27889698.

The previous prime is 27889679. The next prime is 27889703. The reversal of 27889699 is 99698872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27889699 - 2⁹ = 27889187 is a prime.

It is not a weakly prime, because it can be changed into another prime (27889649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13944849 + 13944850.

It is an arithmetic number, because the mean of its divisors is an integer number (13944850).

Almost surely, 2^27889699 is an apocalyptic number.

27889699 is a deficient number, since it is larger than the sum of its proper divisors (1).

27889699 is an equidigital number, since it uses as much as digits as its factorization.

27889699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 58.

The square root of 27889699 is about 5281.0698726678. The cubic root of 27889699 is about 303.2596357878.

The spelling of 27889699 in words is "twenty-seven million, eight hundred eighty-nine thousand, six hundred ninety-nine".