806933009 has 4 divisors (see below), whose sum is σ = 815252004. Its totient is φ = 798614016.

The previous prime is 806932991. The next prime is 806933027. The reversal of 806933009 is 900339608.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (806932991) and next prime (806933027).

It can be written as a sum of positive squares in 2 ways, for example, as 152596609 + 654336400 = 12353^2 + 25580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806933009 is a prime.

It is a super-2 number, since 2×806933009² = 1302281762027588162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (806933089) 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, 4159352 + ... + 4159545.

It is an arithmetic number, because the mean of its divisors is an integer number (203813001).

Almost surely, 2^806933009 is an apocalyptic number.

It is an amenable number.

806933009 is a deficient number, since it is larger than the sum of its proper divisors (8318995).

806933009 is an equidigital number, since it uses as much as digits as its factorization.

806933009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318994.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 806933009 is about 28406.5663007693. The cubic root of 806933009 is about 930.9917385182.

The spelling of 806933009 in words is "eight hundred six million, nine hundred thirty-three thousand, nine".