809848690 has 16 divisors (see below), whose sum is σ = 1665974592. Its totient is φ = 277662384.

The previous prime is 809848673. The next prime is 809848709. The reversal of 809848690 is 96848908.

It is a super-2 number, since 2×809848690² = 1311709801389432200, which contains 22 as substring.

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, 5784564 + ... + 5784703.

It is an arithmetic number, because the mean of its divisors is an integer number (104123412).

Almost surely, 2^809848690 is an apocalyptic number.

809848690 is an abundant number, since it is smaller than the sum of its proper divisors (856125902).

809848690 is a wasteful number, since it uses less digits than its factorization.

809848690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569281.

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 809848690 is about 28457.8405716245. The cubic root of 809848690 is about 932.1117043011. Note that the first 3 decimals are identical.

The spelling of 809848690 in words is "eight hundred nine million, eight hundred forty-eight thousand, six hundred ninety".