82611218 has 8 divisors (see below), whose sum is σ = 127914240. Its totient is φ = 39973140.

The previous prime is 82611203. The next prime is 82611247. The reversal of 82611218 is 81211628.

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

It is a super-2 number, since 2×82611218² = 13649226678887048, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 666158 + ... + 666281.

It is an arithmetic number, because the mean of its divisors is an integer number (15989280).

Almost surely, 2^82611218 is an apocalyptic number.

82611218 is a deficient number, since it is larger than the sum of its proper divisors (45303022).

82611218 is a wasteful number, since it uses less digits than its factorization.

82611218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332472.

The product of its digits is 1536, while the sum is 29.

The square root of 82611218 is about 9089.0713497034. The cubic root of 82611218 is about 435.5249187933.

The spelling of 82611218 in words is "eighty-two million, six hundred eleven thousand, two hundred eighteen".