828631447 has 8 divisors (see below), whose sum is σ = 951816096. Its totient is φ = 706648992.

The previous prime is 828631429. The next prime is 828631483. The reversal of 828631447 is 744136828.

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

It is not a de Polignac number, because 828631447 - 2⁷ = 828631319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828631417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299068 + ... + 301825.

It is an arithmetic number, because the mean of its divisors is an integer number (118977012).

Almost surely, 2^828631447 is an apocalyptic number.

828631447 is a deficient number, since it is larger than the sum of its proper divisors (123184649).

828631447 is a wasteful number, since it uses less digits than its factorization.

828631447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601097.

The product of its digits is 258048, while the sum is 43.

The square root of 828631447 is about 28785.9591988872. The cubic root of 828631447 is about 939.2628319622.

The spelling of 828631447 in words is "eight hundred twenty-eight million, six hundred thirty-one thousand, four hundred forty-seven".