829216304421 has 8 divisors (see below), whose sum is σ = 1107642987744. Its totient is φ = 551800245360.

The previous prime is 829216304393. The next prime is 829216304447. The reversal of 829216304421 is 124403612928.

It is a happy number.

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

It is not a de Polignac number, because 829216304421 - 2¹⁷ = 829216173349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829216304471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252654150 + ... + 252657431.

It is an arithmetic number, because the mean of its divisors is an integer number (138455373468).

Almost surely, 2^829216304421 is an apocalyptic number.

It is an amenable number.

829216304421 is a deficient number, since it is larger than the sum of its proper divisors (278426683323).

829216304421 is a wasteful number, since it uses less digits than its factorization.

829216304421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505312131.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 829216304421 in words is "eight hundred twenty-nine billion, two hundred sixteen million, three hundred four thousand, four hundred twenty-one".