689093 has 2 divisors, whose sum is σ = 689094. Its totient is φ = 689092.

The previous prime is 689089. The next prime is 689107. The reversal of 689093 is 390986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 543169 + 145924 = 737^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 689093 - 2² = 689089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344546 + 344547.

It is an arithmetic number, because the mean of its divisors is an integer number (344547).

2⁶⁸⁹⁰⁹³ is an apocalyptic number.

It is an amenable number.

689093 is a deficient number, since it is larger than the sum of its proper divisors (1).

689093 is an equidigital number, since it uses as much as digits as its factorization.

689093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 689093 is about 830.1162569183. The cubic root of 689093 is about 88.3268236174.

The spelling of 689093 in words is "six hundred eighty-nine thousand, ninety-three".