828516947 has 8 divisors (see below), whose sum is σ = 880061616. Its totient is φ = 777284352.

The previous prime is 828516937. The next prime is 828516959. The reversal of 828516947 is 749615828.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 828516947 - 2⁶ = 828516883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 828516895 and 828516904.

It is not an unprimeable number, because it can be changed into a prime (828516937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72533 + ... + 83174.

It is an arithmetic number, because the mean of its divisors is an integer number (110007702).

Almost surely, 2^828516947 is an apocalyptic number.

828516947 is a deficient number, since it is larger than the sum of its proper divisors (51544669).

828516947 is a wasteful number, since it uses less digits than its factorization.

828516947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156037.

The product of its digits is 967680, while the sum is 50.

The square root of 828516947 is about 28783.9703133532. The cubic root of 828516947 is about 939.2195676342.

It can be divided in two parts, 82851 and 6947, that added together give a palindrome (89798).

The spelling of 828516947 in words is "eight hundred twenty-eight million, five hundred sixteen thousand, nine hundred forty-seven".