806800537 has 4 divisors (see below), whose sum is σ = 808672896. Its totient is φ = 804928180.

The previous prime is 806800523. The next prime is 806800541. The reversal of 806800537 is 735008608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806800537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806800496 and 806800505.

It is not an unprimeable number, because it can be changed into a prime (806800517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935533 + ... + 936394.

It is an arithmetic number, because the mean of its divisors is an integer number (202168224).

Almost surely, 2^806800537 is an apocalyptic number.

It is an amenable number.

806800537 is a deficient number, since it is larger than the sum of its proper divisors (1872359).

806800537 is a wasteful number, since it uses less digits than its factorization.

806800537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872358.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 806800537 is about 28404.2344906530. The cubic root of 806800537 is about 930.9407896019.

The spelling of 806800537 in words is "eight hundred six million, eight hundred thousand, five hundred thirty-seven".