827716853 has 4 divisors (see below), whose sum is σ = 827777088. Its totient is φ = 827656620.

The previous prime is 827716849. The next prime is 827716907. The reversal of 827716853 is 358617728.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 827716853 - 2² = 827716849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 827716798 and 827716807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827716843) 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, 1700 + ... + 40722.

It is an arithmetic number, because the mean of its divisors is an integer number (206944272).

Almost surely, 2^827716853 is an apocalyptic number.

It is an amenable number.

827716853 is a deficient number, since it is larger than the sum of its proper divisors (60235).

827716853 is a wasteful number, since it uses less digits than its factorization.

827716853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60234.

The product of its digits is 564480, while the sum is 47.

The square root of 827716853 is about 28770.0686999527. The cubic root of 827716853 is about 938.9171373025.

The spelling of 827716853 in words is "eight hundred twenty-seven million, seven hundred sixteen thousand, eight hundred fifty-three".