289742029 has 2 divisors, whose sum is σ = 289742030. Its totient is φ = 289742028.

The previous prime is 289741993. The next prime is 289742069. The reversal of 289742029 is 920247982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280730025 + 9012004 = 16755^2 + 3002^2 .

It is a cyclic number.

It is not a de Polignac number, because 289742029 - 2¹⁵ = 289709261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289742069) 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, 144871014 + 144871015.

It is an arithmetic number, because the mean of its divisors is an integer number (144871015).

Almost surely, 2^289742029 is an apocalyptic number.

It is an amenable number.

289742029 is a deficient number, since it is larger than the sum of its proper divisors (1).

289742029 is an equidigital number, since it uses as much as digits as its factorization.

289742029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 289742029 is about 17021.8103913773. The cubic root of 289742029 is about 661.7142679121.

The spelling of 289742029 in words is "two hundred eighty-nine million, seven hundred forty-two thousand, twenty-nine".