806731066 has 8 divisors (see below), whose sum is σ = 1223693460. Its totient is φ = 398833248.

The previous prime is 806731043. The next prime is 806731067. The reversal of 806731066 is 660137608.

806731066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 782376841 + 24354225 = 27971^2 + 4935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (806731067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2265921 + ... + 2266276.

Almost surely, 2^806731066 is an apocalyptic number.

806731066 is a deficient number, since it is larger than the sum of its proper divisors (416962394).

806731066 is a wasteful number, since it uses less digits than its factorization.

806731066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532288.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 806731066 is about 28403.0115656773. The cubic root of 806731066 is about 930.9140687289.

The spelling of 806731066 in words is "eight hundred six million, seven hundred thirty-one thousand, sixty-six".