853116787 has 4 divisors (see below), whose sum is σ = 871268256. Its totient is φ = 834965320.

The previous prime is 853116773. The next prime is 853116791. The reversal of 853116787 is 787611358.

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 853116787 - 2²³ = 844728179 is a prime.

It is a super-2 number, since 2×853116787² = 1455616504522406738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853116707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9075664 + ... + 9075757.

It is an arithmetic number, because the mean of its divisors is an integer number (217817064).

Almost surely, 2^853116787 is an apocalyptic number.

853116787 is a deficient number, since it is larger than the sum of its proper divisors (18151469).

853116787 is a wasteful number, since it uses less digits than its factorization.

853116787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18151468.

The product of its digits is 282240, while the sum is 46.

The square root of 853116787 is about 29208.1630199504. The cubic root of 853116787 is about 948.4246418885.

The spelling of 853116787 in words is "eight hundred fifty-three million, one hundred sixteen thousand, seven hundred eighty-seven".