8256780 has 72 divisors (see below), whose sum is σ = 28627872. Its totient is φ = 1886976.

The previous prime is 8256779. The next prime is 8256823. The reversal of 8256780 is 876528.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2017 + ... + 4536.

Almost surely, 2^8256780 is an apocalyptic number.

It is an amenable number.

8256780 is an abundant number, since it is smaller than the sum of its proper divisors (20371092).

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

8256780 is a wasteful number, since it uses less digits than its factorization.

8256780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575 (or 6570 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 8256780 is about 2873.4613273890. The cubic root of 8256780 is about 202.1173386168.

The spelling of 8256780 in words is "eight million, two hundred fifty-six thousand, seven hundred eighty".