23165828 has 36 divisors (see below), whose sum is σ = 47492172. Its totient is φ = 9858240.

The previous prime is 23165803. The next prime is 23165839. The reversal of 23165828 is 82856132.

It can be written as a sum of positive squares in 2 ways, for example, as 2079364 + 21086464 = 1442^2 + 4592^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35150 + ... + 35802.

It is an arithmetic number, because the mean of its divisors is an integer number (1319227).

Almost surely, 2^23165828 is an apocalyptic number.

23165828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23165828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23746086).

23165828 is an abundant number, since it is smaller than the sum of its proper divisors (24326344).

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

23165828 is a wasteful number, since it uses less digits than its factorization.

23165828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 843 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 23165828 is about 4813.0892366546. The cubic root of 23165828 is about 285.0685297397.

The spelling of 23165828 in words is "twenty-three million, one hundred sixty-five thousand, eight hundred twenty-eight".