259447 has 4 divisors (see below), whose sum is σ = 260496. Its totient is φ = 258400.

The previous prime is 259429. The next prime is 259451. The reversal of 259447 is 744952.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 259447 - 2¹¹ = 257399 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 5 + 4³ + 9⁴ + 4⁶ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (65124).

2²⁵⁹⁴⁴⁷ is an apocalyptic number.

259447 is a deficient number, since it is larger than the sum of its proper divisors (1049).

259447 is an equidigital number, since it uses as much as digits as its factorization.

259447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048.

The product of its digits is 10080, while the sum is 31.

The square root of 259447 is about 509.3594016017. The cubic root of 259447 is about 63.7797605504.

The spelling of 259447 in words is "two hundred fifty-nine thousand, four hundred forty-seven".