258743489 has 2 divisors, whose sum is σ = 258743490. Its totient is φ = 258743488.

The previous prime is 258743449. The next prime is 258743503. The reversal of 258743489 is 984347852.

258743489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249892864 + 8850625 = 15808^2 + 2975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-258743489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258743449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129371744 + 129371745.

It is an arithmetic number, because the mean of its divisors is an integer number (129371745).

Almost surely, 2^258743489 is an apocalyptic number.

It is an amenable number.

258743489 is a deficient number, since it is larger than the sum of its proper divisors (1).

258743489 is an equidigital number, since it uses as much as digits as its factorization.

258743489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 50.

The square root of 258743489 is about 16085.5055562453. The cubic root of 258743489 is about 637.2206041600.

The spelling of 258743489 in words is "two hundred fifty-eight million, seven hundred forty-three thousand, four hundred eighty-nine".