289795949 has 2 divisors, whose sum is σ = 289795950. Its totient is φ = 289795948.

The previous prime is 289795897. The next prime is 289796033. The reversal of 289795949 is 949597982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286117225 + 3678724 = 16915^2 + 1918^2 .

It is a cyclic number.

It is not a de Polignac number, because 289795949 - 2²⁰ = 288747373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 289795891 and 289795900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289795249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144897974 + 144897975.

It is an arithmetic number, because the mean of its divisors is an integer number (144897975).

Almost surely, 2^289795949 is an apocalyptic number.

It is an amenable number.

289795949 is a deficient number, since it is larger than the sum of its proper divisors (1).

289795949 is an equidigital number, since it uses as much as digits as its factorization.

289795949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 62.

The square root of 289795949 is about 17023.3941680265. The cubic root of 289795949 is about 661.7553129530.

The spelling of 289795949 in words is "two hundred eighty-nine million, seven hundred ninety-five thousand, nine hundred forty-nine".