809604913 has 8 divisors (see below), whose sum is σ = 872109056. Its totient is φ = 747133200.

The previous prime is 809604911. The next prime is 809604937. The reversal of 809604913 is 319406908.

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

It is a cyclic number.

It is not a de Polignac number, because 809604913 - 2¹ = 809604911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (809604911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76558 + ... + 86488.

It is an arithmetic number, because the mean of its divisors is an integer number (109013632).

Almost surely, 2^809604913 is an apocalyptic number.

It is an amenable number.

809604913 is a deficient number, since it is larger than the sum of its proper divisors (62504143).

809604913 is a wasteful number, since it uses less digits than its factorization.

809604913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16215.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 809604913 is about 28453.5571238466. The cubic root of 809604913 is about 932.0181682282.

The spelling of 809604913 in words is "eight hundred nine million, six hundred four thousand, nine hundred thirteen".