816317059 has 4 divisors (see below), whose sum is σ = 820827280. Its totient is φ = 811806840.

The previous prime is 816317057. The next prime is 816317063. The reversal of 816317059 is 950713618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 816317059 - 2¹ = 816317057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816317053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254839 + ... + 2255200.

It is an arithmetic number, because the mean of its divisors is an integer number (205206820).

Almost surely, 2^816317059 is an apocalyptic number.

816317059 is a deficient number, since it is larger than the sum of its proper divisors (4510221).

816317059 is a wasteful number, since it uses less digits than its factorization.

816317059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510220.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 816317059 is about 28571.2628177335. The cubic root of 816317059 is about 934.5867597273.

The spelling of 816317059 in words is "eight hundred sixteen million, three hundred seventeen thousand, fifty-nine".