13170828 has 48 divisors (see below), whose sum is σ = 33860736. Its totient is φ = 3951360.

The previous prime is 13170823. The next prime is 13170851. The reversal of 13170828 is 82807131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13170795 and 13170804.

It is not an unprimeable number, because it can be changed into a prime (13170823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14475 + ... + 15357.

It is an arithmetic number, because the mean of its divisors is an integer number (705432).

Almost surely, 2^13170828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13170828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16930368).

13170828 is an abundant number, since it is smaller than the sum of its proper divisors (20689908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13170828 is a wasteful number, since it uses less digits than its factorization.

13170828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 13170828 is about 3629.1635399910. The cubic root of 13170828 is about 236.1589229292.

Adding to 13170828 its reverse (82807131), we get a palindrome (95977959).

The spelling of 13170828 in words is "thirteen million, one hundred seventy thousand, eight hundred twenty-eight".