806563813 has 8 divisors (see below), whose sum is σ = 926197920. Its totient is φ = 694648080.

The previous prime is 806563811. The next prime is 806563819. The reversal of 806563813 is 318365608.

806563813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 806563813 - 2¹ = 806563811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806563811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1929370 + ... + 1929787.

It is an arithmetic number, because the mean of its divisors is an integer number (115774740).

Almost surely, 2^806563813 is an apocalyptic number.

It is an amenable number.

806563813 is a deficient number, since it is larger than the sum of its proper divisors (119634107).

806563813 is a wasteful number, since it uses less digits than its factorization.

806563813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859187.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 806563813 is about 28400.0671302024. The cubic root of 806563813 is about 930.8497313314.

The spelling of 806563813 in words is "eight hundred six million, five hundred sixty-three thousand, eight hundred thirteen".