259723 has 2 divisors, whose sum is σ = 259724. Its totient is φ = 259722.

The previous prime is 259717. The next prime is 259733. The reversal of 259723 is 327952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 259723 - 2⁵ = 259691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259691 and 259700.

It is not a weakly prime, because it can be changed into another prime (259733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129861 + 129862.

It is an arithmetic number, because the mean of its divisors is an integer number (129862).

2²⁵⁹⁷²³ is an apocalyptic number.

259723 is a deficient number, since it is larger than the sum of its proper divisors (1).

259723 is an equidigital number, since it uses as much as digits as its factorization.

259723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 259723 is about 509.6302581284. The cubic root of 259723 is about 63.8023688615.

The spelling of 259723 in words is "two hundred fifty-nine thousand, seven hundred twenty-three".