689359213 has 2 divisors, whose sum is σ = 689359214. Its totient is φ = 689359212.

The previous prime is 689359169. The next prime is 689359267. The reversal of 689359213 is 312953986.

It is a happy number.

689359213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435849129 + 253510084 = 20877^2 + 15922^2 .

It is a cyclic number.

It is not a de Polignac number, because 689359213 - 2²⁵ = 655804781 is a prime.

It is a super-2 number, since 2×689359213² = 950432249095958738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689359313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344679606 + 344679607.

It is an arithmetic number, because the mean of its divisors is an integer number (344679607).

Almost surely, 2^689359213 is an apocalyptic number.

It is an amenable number.

689359213 is a deficient number, since it is larger than the sum of its proper divisors (1).

689359213 is an equidigital number, since it uses as much as digits as its factorization.

689359213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The square root of 689359213 is about 26255.6510679130. The cubic root of 689359213 is about 883.3819640328.

The spelling of 689359213 in words is "six hundred eighty-nine million, three hundred fifty-nine thousand, two hundred thirteen".