689141 has 2 divisors, whose sum is σ = 689142. Its totient is φ = 689140.

The previous prime is 689131. The next prime is 689167. The reversal of 689141 is 141986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 483025 + 206116 = 695^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 689141 - 2⁶ = 689077 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344570 + 344571.

It is an arithmetic number, because the mean of its divisors is an integer number (344571).

2⁶⁸⁹¹⁴¹ is an apocalyptic number.

It is an amenable number.

689141 is a deficient number, since it is larger than the sum of its proper divisors (1).

689141 is an equidigital number, since it uses as much as digits as its factorization.

689141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 689141 is about 830.1451680279. The cubic root of 689141 is about 88.3288744239.

The spelling of 689141 in words is "six hundred eighty-nine thousand, one hundred forty-one".