806707609 has 4 divisors (see below), whose sum is σ = 818069760. Its totient is φ = 795345460.

The previous prime is 806707571. The next prime is 806707619. The reversal of 806707609 is 906707608.

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 not a de Polignac number, because 806707609 - 2¹⁹ = 806183321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806707619) 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, 5680969 + ... + 5681110.

It is an arithmetic number, because the mean of its divisors is an integer number (204517440).

Almost surely, 2^806707609 is an apocalyptic number.

It is an amenable number.

806707609 is a deficient number, since it is larger than the sum of its proper divisors (11362151).

806707609 is a wasteful number, since it uses less digits than its factorization.

806707609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11362150.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 806707609 is about 28402.5986311112. The cubic root of 806707609 is about 930.9050460348.

Subtracting 806707609 from its reverse (906707608), we obtain a palindrome (99999999).

The spelling of 806707609 in words is "eight hundred six million, seven hundred seven thousand, six hundred nine".