289394071 has 2 divisors, whose sum is σ = 289394072. Its totient is φ = 289394070.

The previous prime is 289394069. The next prime is 289394089. The reversal of 289394071 is 170493982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289394071 - 2¹ = 289394069 is a prime.

Together with 289394069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289394041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144697035 + 144697036.

It is an arithmetic number, because the mean of its divisors is an integer number (144697036).

Almost surely, 2^289394071 is an apocalyptic number.

289394071 is a deficient number, since it is larger than the sum of its proper divisors (1).

289394071 is an equidigital number, since it uses as much as digits as its factorization.

289394071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 289394071 is about 17011.5863751738. The cubic root of 289394071 is about 661.4492724080.

The spelling of 289394071 in words is "two hundred eighty-nine million, three hundred ninety-four thousand, seventy-one".