828979 has 4 divisors (see below), whose sum is σ = 849240. Its totient is φ = 808720.

The previous prime is 828977. The next prime is 829001. The reversal of 828979 is 979828.

828979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 828979 - 2¹ = 828977 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (828977) 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, 10069 + ... + 10150.

It is an arithmetic number, because the mean of its divisors is an integer number (212310).

2⁸²⁸⁹⁷⁹ is an apocalyptic number.

828979 is a deficient number, since it is larger than the sum of its proper divisors (20261).

828979 is a wasteful number, since it uses less digits than its factorization.

828979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260.

The product of its digits is 72576, while the sum is 43.

The square root of 828979 is about 910.4828389377. The cubic root of 828979 is about 93.9394131986.

The spelling of 828979 in words is "eight hundred twenty-eight thousand, nine hundred seventy-nine".