82866117 has 8 divisors (see below), whose sum is σ = 113057824. Its totient is φ = 53959248.

The previous prime is 82866107. The next prime is 82866139. The reversal of 82866117 is 71166828.

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

It is not a de Polignac number, because 82866117 - 2⁷ = 82865989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82866107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321058 + ... + 321315.

It is an arithmetic number, because the mean of its divisors is an integer number (14132228).

Almost surely, 2^82866117 is an apocalyptic number.

It is an amenable number.

82866117 is a deficient number, since it is larger than the sum of its proper divisors (30191707).

82866117 is a wasteful number, since it uses less digits than its factorization.

82866117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642419.

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

The square root of 82866117 is about 9103.0828294595. The cubic root of 82866117 is about 435.9723999166.

The spelling of 82866117 in words is "eighty-two million, eight hundred sixty-six thousand, one hundred seventeen".