82297218 has 8 divisors (see below), whose sum is σ = 164594448. Its totient is φ = 27432404.

The previous prime is 82297217. The next prime is 82297253. The reversal of 82297218 is 81279228.

It is a sphenic number, since it is the product of 3 distinct primes.

82297218 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (82297211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6858096 + ... + 6858107.

It is an arithmetic number, because the mean of its divisors is an integer number (20574306).

Almost surely, 2^82297218 is an apocalyptic number.

82297218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82297218 is a wasteful number, since it uses less digits than its factorization.

82297218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716208.

The product of its digits is 32256, while the sum is 39.

The square root of 82297218 is about 9071.7814127105. The cubic root of 82297218 is about 434.9724173289.

The spelling of 82297218 in words is "eighty-two million, two hundred ninety-seven thousand, two hundred eighteen".