8193856 has 56 divisors (see below), whose sum is σ = 18068544. Its totient is φ = 3655680.

The previous prime is 8193851. The next prime is 8193859. The reversal of 8193856 is 6583918.

It is a happy number.

It is a super-2 number, since 2×8193856² = 134278552297472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193851) 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, 72456 + ... + 72568.

Almost surely, 2^8193856 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 8193856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9034272).

8193856 is an abundant number, since it is smaller than the sum of its proper divisors (9874688).

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

8193856 is a wasteful number, since it uses less digits than its factorization.

8193856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 229 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 8193856 is about 2862.4912226940. The cubic root of 8193856 is about 201.6025908796.

The spelling of 8193856 in words is "eight million, one hundred ninety-three thousand, eight hundred fifty-six".