828289121 has 8 divisors (see below), whose sum is σ = 914475744. Its totient is φ = 743917120.

The previous prime is 828289117. The next prime is 828289129. The reversal of 828289121 is 121982828.

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

It is a cyclic number.

It is not a de Polignac number, because 828289121 - 2² = 828289117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828289129) 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, 452696 + ... + 454521.

It is an arithmetic number, because the mean of its divisors is an integer number (114309468).

Almost surely, 2^828289121 is an apocalyptic number.

It is an amenable number.

828289121 is a deficient number, since it is larger than the sum of its proper divisors (86186623).

828289121 is a wasteful number, since it uses less digits than its factorization.

828289121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907311.

The product of its digits is 36864, while the sum is 41.

The square root of 828289121 is about 28780.0125260570. The cubic root of 828289121 is about 939.1334707216.

The spelling of 828289121 in words is "eight hundred twenty-eight million, two hundred eighty-nine thousand, one hundred twenty-one".