689382959 has 2 divisors, whose sum is σ = 689382960. Its totient is φ = 689382958.

The previous prime is 689382943. The next prime is 689382973. The reversal of 689382959 is 959283986.

689382959 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 is a cyclic number.

It is not a de Polignac number, because 689382959 - 2⁴ = 689382943 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 689382898 and 689382907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689382989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344691479 + 344691480.

It is an arithmetic number, because the mean of its divisors is an integer number (344691480).

Almost surely, 2^689382959 is an apocalyptic number.

689382959 is a deficient number, since it is larger than the sum of its proper divisors (1).

689382959 is an equidigital number, since it uses as much as digits as its factorization.

689382959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 59.

The square root of 689382959 is about 26256.1032714301. The cubic root of 689382959 is about 883.3921070501.

The spelling of 689382959 in words is "six hundred eighty-nine million, three hundred eighty-two thousand, nine hundred fifty-nine".