8256427 has 2 divisors, whose sum is σ = 8256428. Its totient is φ = 8256426.

The previous prime is 8256403. The next prime is 8256433. The reversal of 8256427 is 7246528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8256427 - 2⁷ = 8256299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8256392 and 8256401.

It is not a weakly prime, because it can be changed into another prime (8256727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4128213 + 4128214.

It is an arithmetic number, because the mean of its divisors is an integer number (4128214).

Almost surely, 2^8256427 is an apocalyptic number.

8256427 is a deficient number, since it is larger than the sum of its proper divisors (1).

8256427 is an equidigital number, since it uses as much as digits as its factorization.

8256427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 8256427 is about 2873.3999025545. The cubic root of 8256427 is about 202.1144582189.

The spelling of 8256427 in words is "eight million, two hundred fifty-six thousand, four hundred twenty-seven".