809227613 has 4 divisors (see below), whose sum is σ = 851818560. Its totient is φ = 766636668.

The previous prime is 809227597. The next prime is 809227633. The reversal of 809227613 is 316722908.

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 809227613 - 2⁴ = 809227597 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 (809227633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21295445 + ... + 21295482.

It is an arithmetic number, because the mean of its divisors is an integer number (212954640).

Almost surely, 2^809227613 is an apocalyptic number.

It is an amenable number.

809227613 is a deficient number, since it is larger than the sum of its proper divisors (42590947).

809227613 is a wasteful number, since it uses less digits than its factorization.

809227613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42590946.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 809227613 is about 28446.9262487180. The cubic root of 809227613 is about 931.8733629905.

The spelling of 809227613 in words is "eight hundred nine million, two hundred twenty-seven thousand, six hundred thirteen".