8857818 has 48 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 2798880.

The previous prime is 8857817. The next prime is 8857831. The reversal of 8857818 is 8187588.

It is a happy number.

It is a super-2 number, since 2×8857818² = 156921879442248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8857817) 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 23 ways as a sum of consecutive naturals, for example, 36943 + ... + 37181.

It is an arithmetic number, because the mean of its divisors is an integer number (421200).

Almost surely, 2^8857818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8857818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10108800).

8857818 is an abundant number, since it is smaller than the sum of its proper divisors (11359782).

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

8857818 is a wasteful number, since it uses less digits than its factorization.

8857818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 344 counting only the distinct ones).

The product of its digits is 143360, while the sum is 45.

The square root of 8857818 is about 2976.2086620397. The cubic root of 8857818 is about 206.9071907690.

The spelling of 8857818 in words is "eight million, eight hundred fifty-seven thousand, eight hundred eighteen".