258276947 has 2 divisors, whose sum is σ = 258276948. Its totient is φ = 258276946.

The previous prime is 258276943. The next prime is 258277009. The reversal of 258276947 is 749672852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258276947 - 2² = 258276943 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 258276895 and 258276904.

It is not a weakly prime, because it can be changed into another prime (258276943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129138473 + 129138474.

It is an arithmetic number, because the mean of its divisors is an integer number (129138474).

Almost surely, 2^258276947 is an apocalyptic number.

258276947 is a deficient number, since it is larger than the sum of its proper divisors (1).

258276947 is an equidigital number, since it uses as much as digits as its factorization.

258276947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 50.

The square root of 258276947 is about 16070.9970754773. The cubic root of 258276947 is about 636.8373815877.

The spelling of 258276947 in words is "two hundred fifty-eight million, two hundred seventy-six thousand, nine hundred forty-seven".