289090027 has 2 divisors, whose sum is σ = 289090028. Its totient is φ = 289090026.

The previous prime is 289089971. The next prime is 289090031. The reversal of 289090027 is 720090982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289090027 - 2²³ = 280701419 is a prime.

It is not a weakly prime, because it can be changed into another prime (289090927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144545013 + 144545014.

It is an arithmetic number, because the mean of its divisors is an integer number (144545014).

Almost surely, 2^289090027 is an apocalyptic number.

289090027 is a deficient number, since it is larger than the sum of its proper divisors (1).

289090027 is an equidigital number, since it uses as much as digits as its factorization.

289090027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 289090027 is about 17002.6476467637. The cubic root of 289090027 is about 661.2175466817.

The spelling of 289090027 in words is "two hundred eighty-nine million, ninety thousand, twenty-seven".