8257259 has 2 divisors, whose sum is σ = 8257260. Its totient is φ = 8257258.

The previous prime is 8257243. The next prime is 8257261. The reversal of 8257259 is 9527528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8257259 - 2⁴ = 8257243 is a prime.

Together with 8257261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8257219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128629 + 4128630.

It is an arithmetic number, because the mean of its divisors is an integer number (4128630).

Almost surely, 2^8257259 is an apocalyptic number.

8257259 is a deficient number, since it is larger than the sum of its proper divisors (1).

8257259 is an equidigital number, since it uses as much as digits as its factorization.

8257259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 38.

The square root of 8257259 is about 2873.5446751356. The cubic root of 8257259 is about 202.1212470143.

The spelling of 8257259 in words is "eight million, two hundred fifty-seven thousand, two hundred fifty-nine".