Search a number
-
+
689341 is a prime number
BaseRepresentation
bin10101000010010111101
31022000121011
42220102331
5134024331
622435221
75600512
oct2502275
91260534
10689341
11430a04
12292b11
131b19c3
1413d309
15d93b1
hexa84bd

689341 has 2 divisors, whose sum is σ = 689342. Its totient is φ = 689340.

The previous prime is 689321. The next prime is 689357. The reversal of 689341 is 143986.

689341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688900 + 441 = 830^2 + 21^2 .

It is a cyclic number.

It is not a de Polignac number, because 689341 - 25 = 689309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344670 + 344671.

It is an arithmetic number, because the mean of its divisors is an integer number (344671).

2689341 is an apocalyptic number.

It is an amenable number.

689341 is a deficient number, since it is larger than the sum of its proper divisors (1).

689341 is an equidigital number, since it uses as much as digits as its factorization.

689341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 689341 is about 830.2656201482. The cubic root of 689341 is about 88.3374184258.

It can be divided in two parts, 68 and 9341, that added together give a square (9409 = 972).

The spelling of 689341 in words is "six hundred eighty-nine thousand, three hundred forty-one".