258463691 has 2 divisors, whose sum is σ = 258463692. Its totient is φ = 258463690.

The previous prime is 258463687. The next prime is 258463697. The reversal of 258463691 is 196364852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258463691 - 2² = 258463687 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (258463697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129231845 + 129231846.

It is an arithmetic number, because the mean of its divisors is an integer number (129231846).

Almost surely, 2^258463691 is an apocalyptic number.

258463691 is a deficient number, since it is larger than the sum of its proper divisors (1).

258463691 is an equidigital number, since it uses as much as digits as its factorization.

258463691 is an evil number, because the sum of its binary digits is even.

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

The square root of 258463691 is about 16076.8059949730. The cubic root of 258463691 is about 636.9908304473.

The spelling of 258463691 in words is "two hundred fifty-eight million, four hundred sixty-three thousand, six hundred ninety-one".