828118307 has 4 divisors (see below), whose sum is σ = 838095720. Its totient is φ = 818140896.

The previous prime is 828118301. The next prime is 828118327. The reversal of 828118307 is 703811828.

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 828118307 - 2¹² = 828114211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828118301) 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 3 ways as a sum of consecutive naturals, for example, 4988582 + ... + 4988747.

It is an arithmetic number, because the mean of its divisors is an integer number (209523930).

Almost surely, 2^828118307 is an apocalyptic number.

828118307 is a deficient number, since it is larger than the sum of its proper divisors (9977413).

828118307 is an equidigital number, since it uses as much as digits as its factorization.

828118307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9977412.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 828118307 is about 28777.0447926815. The cubic root of 828118307 is about 939.0689086546.

The spelling of 828118307 in words is "eight hundred twenty-eight million, one hundred eighteen thousand, three hundred seven".