70289 has 2 divisors, whose sum is σ = 70290. Its totient is φ = 70288.

The previous prime is 70271. The next prime is 70297. The reversal of 70289 is 98207.

70289 is nontrivially palindromic in base 2.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70225 + 64 = 265^2 + 8^2 .

It is an emirp because it is prime and its reverse (98207) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70289 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (70229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35144 + 35145.

It is an arithmetic number, because the mean of its divisors is an integer number (35145).

2⁷⁰²⁸⁹ is an apocalyptic number.

It is an amenable number.

70289 is a deficient number, since it is larger than the sum of its proper divisors (1).

70289 is an equidigital number, since it uses as much as digits as its factorization.

70289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 70289 is about 265.1207272169. The cubic root of 70289 is about 41.2694918594.

The spelling of 70289 in words is "seventy thousand, two hundred eighty-nine".