290327669 has 2 divisors, whose sum is σ = 290327670. Its totient is φ = 290327668.

The previous prime is 290327659. The next prime is 290327677. The reversal of 290327669 is 966723092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 290293444 + 34225 = 17038^2 + 185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290327669 is a prime.

It is a super-2 number, since 2×290327669² = 168580310773947122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290327659) 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 as a sum of consecutive naturals, namely, 145163834 + 145163835.

It is an arithmetic number, because the mean of its divisors is an integer number (145163835).

Almost surely, 2^290327669 is an apocalyptic number.

It is an amenable number.

290327669 is a deficient number, since it is larger than the sum of its proper divisors (1).

290327669 is an equidigital number, since it uses as much as digits as its factorization.

290327669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 290327669 is about 17039.0043429773. The cubic root of 290327669 is about 662.1597970409.

The spelling of 290327669 in words is "two hundred ninety million, three hundred twenty-seven thousand, six hundred sixty-nine".