806856120 has 128 divisors (see below), whose sum is σ = 3073766400. Its totient is φ = 184422528.

The previous prime is 806856107. The next prime is 806856121. The reversal of 806856120 is 21658608.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806856121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45804 + ... + 60923.

It is an arithmetic number, because the mean of its divisors is an integer number (24013800).

Almost surely, 2^806856120 is an apocalyptic number.

It is an amenable number.

806856120 is an abundant number, since it is smaller than the sum of its proper divisors (2266910280).

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

806856120 is a wasteful number, since it uses less digits than its factorization.

806856120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106754 (or 106744 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 806856120 is about 28405.2129018601. The cubic root of 806856120 is about 930.9621675804.

The spelling of 806856120 in words is "eight hundred six million, eight hundred fifty-six thousand, one hundred twenty".