8218782 has 96 divisors (see below), whose sum is σ = 21805056. Its totient is φ = 2203200.

The previous prime is 8218781. The next prime is 8218783. The reversal of 8218782 is 2878128.

It is an interprime number because it is at equal distance from previous prime (8218781) and next prime (8218783).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79743 + ... + 79845.

It is an arithmetic number, because the mean of its divisors is an integer number (227136).

Almost surely, 2^8218782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8218782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10902528).

8218782 is an abundant number, since it is smaller than the sum of its proper divisors (13586274).

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

8218782 is a wasteful number, since it uses less digits than its factorization.

8218782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 163 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 8218782 is about 2866.8418163547. The cubic root of 8218782 is about 201.8068113434.

The spelling of 8218782 in words is "eight million, two hundred eighteen thousand, seven hundred eighty-two".