828834889 has 4 divisors (see below), whose sum is σ = 829252756. Its totient is φ = 828417024.

The previous prime is 828834883. The next prime is 828834907. The reversal of 828834889 is 988438828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 456036025 + 372798864 = 21355^2 + 19308^2 .

It is a cyclic number.

It is not a de Polignac number, because 828834889 - 2¹³ = 828826697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828834883) 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, 205944 + ... + 209929.

It is an arithmetic number, because the mean of its divisors is an integer number (207313189).

Almost surely, 2^828834889 is an apocalyptic number.

It is an amenable number.

828834889 is a deficient number, since it is larger than the sum of its proper divisors (417867).

828834889 is a wasteful number, since it uses less digits than its factorization.

828834889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417866.

The product of its digits is 7077888, while the sum is 58.

The square root of 828834889 is about 28789.4926839637. The cubic root of 828834889 is about 939.3396935850.

The spelling of 828834889 in words is "eight hundred twenty-eight million, eight hundred thirty-four thousand, eight hundred eighty-nine".