290669289 has 4 divisors (see below), whose sum is σ = 387559056. Its totient is φ = 193779524.

The previous prime is 290669287. The next prime is 290669321. The reversal of 290669289 is 982966092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 290669289 - 2¹ = 290669287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290669287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48444879 + ... + 48444884.

It is an arithmetic number, because the mean of its divisors is an integer number (96889764).

Almost surely, 2^290669289 is an apocalyptic number.

It is an amenable number.

290669289 is a deficient number, since it is larger than the sum of its proper divisors (96889767).

290669289 is an equidigital number, since it uses as much as digits as its factorization.

290669289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96889766.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 290669289 is about 17049.0260425633. The cubic root of 290669289 is about 662.4194098718.

The spelling of 290669289 in words is "two hundred ninety million, six hundred sixty-nine thousand, two hundred eighty-nine".