259697 has 2 divisors, whose sum is σ = 259698. Its totient is φ = 259696.

The previous prime is 259691. The next prime is 259717. The reversal of 259697 is 796952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167281 + 92416 = 409^2 + 304^2 .

It is a cyclic number.

It is not a de Polignac number, because 259697 - 2⁴ = 259681 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 259697.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129848 + 129849.

It is an arithmetic number, because the mean of its divisors is an integer number (129849).

2²⁵⁹⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

259697 is a deficient number, since it is larger than the sum of its proper divisors (1).

259697 is an equidigital number, since it uses as much as digits as its factorization.

259697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 38.

The square root of 259697 is about 509.6047488005. The cubic root of 259697 is about 63.8002397766.

The spelling of 259697 in words is "two hundred fifty-nine thousand, six hundred ninety-seven".