82213208 has 64 divisors (see below), whose sum is σ = 193950720. Its totient is φ = 32002080.

The previous prime is 82213193. The next prime is 82213213. The reversal of 82213208 is 80231228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73985 + ... + 75087.

It is an arithmetic number, because the mean of its divisors is an integer number (3030480).

Almost surely, 2^82213208 is an apocalyptic number.

82213208 is a gapful number since it is divisible by the number (88) 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 82213208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96975360).

82213208 is an abundant number, since it is smaller than the sum of its proper divisors (111737512).

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

82213208 is a wasteful number, since it uses less digits than its factorization.

82213208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 82213208 is about 9067.1499381007. The cubic root of 82213208 is about 434.8243585613.

The spelling of 82213208 in words is "eighty-two million, two hundred thirteen thousand, two hundred eight".