8256978 has 20 divisors (see below), whose sum is σ = 18502110. Its totient is φ = 2752272.

The previous prime is 8256973. The next prime is 8257003. The reversal of 8256978 is 8796528.

8256978 is a `hidden beast` number, since 82 + 569 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7935489 + 321489 = 2817^2 + 567^2 .

It is not an unprimeable number, because it can be changed into a prime (8256973) 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 9 ways as a sum of consecutive naturals, for example, 25323 + ... + 25646.

Almost surely, 2^8256978 is an apocalyptic number.

8256978 is an abundant number, since it is smaller than the sum of its proper divisors (10245132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8256978 is a wasteful number, since it uses less digits than its factorization.

8256978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50983 (or 50974 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 8256978 is about 2873.4957804041. The cubic root of 8256978 is about 202.1189542149.

The spelling of 8256978 in words is "eight million, two hundred fifty-six thousand, nine hundred seventy-eight".