27983089 has 2 divisors, whose sum is σ = 27983090. Its totient is φ = 27983088.

The previous prime is 27983083. The next prime is 27983119. The reversal of 27983089 is 98038972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16646400 + 11336689 = 4080^2 + 3367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27983089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27983083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13991544 + 13991545.

It is an arithmetic number, because the mean of its divisors is an integer number (13991545).

Almost surely, 2^27983089 is an apocalyptic number.

It is an amenable number.

27983089 is a deficient number, since it is larger than the sum of its proper divisors (1).

27983089 is an equidigital number, since it uses as much as digits as its factorization.

27983089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 27983089 is about 5289.9044414810. The cubic root of 27983089 is about 303.5977518331.

The spelling of 27983089 in words is "twenty-seven million, nine hundred eighty-three thousand, eighty-nine".