828479147 has 4 divisors (see below), whose sum is σ = 828552720. Its totient is φ = 828405576.

The previous prime is 828479143. The next prime is 828479149. The reversal of 828479147 is 741974828.

828479147 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, 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 828479147 - 2² = 828479143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 828479095 and 828479104.

It is not an unprimeable number, because it can be changed into a prime (828479143) 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, 15968 + ... + 43725.

It is an arithmetic number, because the mean of its divisors is an integer number (207138180).

Almost surely, 2^828479147 is an apocalyptic number.

828479147 is a deficient number, since it is larger than the sum of its proper divisors (73573).

828479147 is a wasteful number, since it uses less digits than its factorization.

828479147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73572.

The product of its digits is 903168, while the sum is 50.

The square root of 828479147 is about 28783.3136904006. The cubic root of 828479147 is about 939.2052838630.

The spelling of 828479147 in words is "eight hundred twenty-eight million, four hundred seventy-nine thousand, one hundred forty-seven".