809789345 has 8 divisors (see below), whose sum is σ = 973452480. Its totient is φ = 646694640.

The previous prime is 809789333. The next prime is 809789353. The reversal of 809789345 is 543987908.

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

It is not a de Polignac number, because 809789345 - 2¹⁰ = 809788321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138965 + ... + 144674.

It is an arithmetic number, because the mean of its divisors is an integer number (121681560).

Almost surely, 2^809789345 is an apocalyptic number.

It is an amenable number.

809789345 is a deficient number, since it is larger than the sum of its proper divisors (163663135).

809789345 is a wasteful number, since it uses less digits than its factorization.

809789345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284215.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 809789345 is about 28456.7978697534. The cubic root of 809789345 is about 932.0889356362.

The spelling of 809789345 in words is "eight hundred nine million, seven hundred eighty-nine thousand, three hundred forty-five".