817109016 has 32 divisors (see below), whose sum is σ = 2044170240. Its totient is φ = 272183328.

The previous prime is 817109011. The next prime is 817109023. The reversal of 817109016 is 610901718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (817109011) 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, 26745 + ... + 48471.

It is an arithmetic number, because the mean of its divisors is an integer number (63880320).

Almost surely, 2^817109016 is an apocalyptic number.

It is an amenable number.

817109016 is an abundant number, since it is smaller than the sum of its proper divisors (1227061224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

817109016 is a wasteful number, since it uses less digits than its factorization.

817109016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23303 (or 23299 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 817109016 is about 28585.1187858298. The cubic root of 817109016 is about 934.8888944971. Note that the first 4 decimals are identical.

The spelling of 817109016 in words is "eight hundred seventeen million, one hundred nine thousand, sixteen".