258680393 has 2 divisors, whose sum is σ = 258680394. Its totient is φ = 258680392.

The previous prime is 258680371. The next prime is 258680407. The reversal of 258680393 is 393086852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199035664 + 59644729 = 14108^2 + 7723^2 .

It is a cyclic number.

It is not a de Polignac number, because 258680393 - 2⁸ = 258680137 is a prime.

It is not a weakly prime, because it can be changed into another prime (258680363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129340196 + 129340197.

It is an arithmetic number, because the mean of its divisors is an integer number (129340197).

Almost surely, 2^258680393 is an apocalyptic number.

It is an amenable number.

258680393 is a deficient number, since it is larger than the sum of its proper divisors (1).

258680393 is an equidigital number, since it uses as much as digits as its factorization.

258680393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 258680393 is about 16083.5441678754. The cubic root of 258680393 is about 637.1688033849.

The spelling of 258680393 in words is "two hundred fifty-eight million, six hundred eighty thousand, three hundred ninety-three".