259923799 has 2 divisors, whose sum is σ = 259923800. Its totient is φ = 259923798.

The previous prime is 259923793. The next prime is 259923817. The reversal of 259923799 is 997329952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259923799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (259923793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129961899 + 129961900.

It is an arithmetic number, because the mean of its divisors is an integer number (129961900).

Almost surely, 2^259923799 is an apocalyptic number.

259923799 is a deficient number, since it is larger than the sum of its proper divisors (1).

259923799 is an equidigital number, since it uses as much as digits as its factorization.

259923799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2755620, while the sum is 55.

The square root of 259923799 is about 16122.1524307395. The cubic root of 259923799 is about 638.1880708179.

It can be divided in two parts, 25992 and 3799, that added together give a cube (29791 = 31³).

The spelling of 259923799 in words is "two hundred fifty-nine million, nine hundred twenty-three thousand, seven hundred ninety-nine".