806356841 has 12 divisors (see below), whose sum is σ = 835919316. Its totient is φ = 777807360.

The previous prime is 806356819. The next prime is 806356843. The reversal of 806356841 is 148653608.

It can be written as a sum of positive squares in 2 ways, for example, as 323280400 + 483076441 = 17980^2 + 21979^2 .

It is not a de Polignac number, because 806356841 - 2⁶ = 806356777 is a prime.

It is a super-2 number, since 2×806356841² = 1300422710054998562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806356843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338045 + ... + 340421.

It is an arithmetic number, because the mean of its divisors is an integer number (69659943).

Almost surely, 2^806356841 is an apocalyptic number.

It is an amenable number.

806356841 is a deficient number, since it is larger than the sum of its proper divisors (29562475).

806356841 is a wasteful number, since it uses less digits than its factorization.

806356841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 806356841 is about 28396.4230317834. The cubic root of 806356841 is about 930.7701028675.

The spelling of 806356841 in words is "eight hundred six million, three hundred fifty-six thousand, eight hundred forty-one".