809650136 has 16 divisors (see below), whose sum is σ = 1518601200. Its totient is φ = 404689824.

The previous prime is 809650091. The next prime is 809650181. The reversal of 809650136 is 631056908.

It is an interprime number because it is at equal distance from previous prime (809650091) and next prime (809650181).

It is a self number, because there is not a number n which added to its sum of digits gives 809650136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11306 + ... + 41798.

It is an arithmetic number, because the mean of its divisors is an integer number (94912575).

Almost surely, 2^809650136 is an apocalyptic number.

It is an amenable number.

809650136 is a deficient number, since it is larger than the sum of its proper divisors (708951064).

809650136 is a wasteful number, since it uses less digits than its factorization.

809650136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33818 (or 33814 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 809650136 is about 28454.3517937064. The cubic root of 809650136 is about 932.0355214961.

The spelling of 809650136 in words is "eight hundred nine million, six hundred fifty thousand, one hundred thirty-six".