806047056 has 30 divisors (see below), whose sum is σ = 2255812650. Its totient is φ = 268682304.

The previous prime is 806047049. The next prime is 806047057. The reversal of 806047056 is 650740608.

It is a happy number.

806047056 is a `hidden beast` number, since 80 + 60 + 470 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 586414656 + 219632400 = 24216^2 + 14820^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 806047056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806047057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2798631 + ... + 2798918.

It is an arithmetic number, because the mean of its divisors is an integer number (75193755).

Almost surely, 2^806047056 is an apocalyptic number.

It is an amenable number.

806047056 is an abundant number, since it is smaller than the sum of its proper divisors (1449765594).

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

806047056 is a wasteful number, since it uses less digits than its factorization.

806047056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5597563 (or 5597554 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 806047056 is about 28390.9678595148. The cubic root of 806047056 is about 930.6508936316.

The spelling of 806047056 in words is "eight hundred six million, forty-seven thousand, fifty-six".