82189266 has 8 divisors (see below), whose sum is σ = 164378544. Its totient is φ = 27396420.

The previous prime is 82189259. The next prime is 82189267. The reversal of 82189266 is 66298128.

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

82189266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (82189267) 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, 6849100 + ... + 6849111.

It is an arithmetic number, because the mean of its divisors is an integer number (20547318).

Almost surely, 2^82189266 is an apocalyptic number.

82189266 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.

82189266 is a wasteful number, since it uses less digits than its factorization.

82189266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13698216.

The product of its digits is 82944, while the sum is 42.

The square root of 82189266 is about 9065.8295814559. The cubic root of 82189266 is about 434.7821448433.

The spelling of 82189266 in words is "eighty-two million, one hundred eighty-nine thousand, two hundred sixty-six".