8256428 has 12 divisors (see below), whose sum is σ = 14497392. Its totient is φ = 4114320.

The previous prime is 8256427. The next prime is 8256433. The reversal of 8256428 is 8246528.

It is not an unprimeable number, because it can be changed into a prime (8256427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (1208116).

Almost surely, 2^8256428 is an apocalyptic number.

It is an amenable number.

8256428 is a deficient number, since it is larger than the sum of its proper divisors (6240964).

8256428 is a wasteful number, since it uses less digits than its factorization.

8256428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952 (or 6950 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 8256428 is about 2873.4000765643. The cubic root of 8256428 is about 202.1144663787.

The spelling of 8256428 in words is "eight million, two hundred fifty-six thousand, four hundred twenty-eight".