290027009 has 2 divisors, whose sum is σ = 290027010. Its totient is φ = 290027008.

The previous prime is 290026991. The next prime is 290027011. The reversal of 290027009 is 900720092.

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., 259113409 + 30913600 = 16097^2 + 5560^2 .

It is a cyclic number.

It is not a de Polignac number, because 290027009 - 2²⁴ = 273249793 is a prime.

Together with 290027011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (290027069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145013504 + 145013505.

It is an arithmetic number, because the mean of its divisors is an integer number (145013505).

Almost surely, 2^290027009 is an apocalyptic number.

It is an amenable number.

290027009 is a deficient number, since it is larger than the sum of its proper divisors (1).

290027009 is an equidigital number, since it uses as much as digits as its factorization.

290027009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 290027009 is about 17030.1793590085. The cubic root of 290027009 is about 661.9311430650.

The spelling of 290027009 in words is "two hundred ninety million, twenty-seven thousand, nine".