2082168217 has 4 divisors (see below), whose sum is σ = 2083399780. Its totient is φ = 2080936656.

The previous prime is 2082168157. The next prime is 2082168259. The reversal of 2082168217 is 7128612802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 662084361 + 1420083856 = 25731^2 + 37684^2 .

It is a cyclic number.

It is not a de Polignac number, because 2082168217 - 2⁷ = 2082168089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2082168917) 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, 613242 + ... + 616627.

It is an arithmetic number, because the mean of its divisors is an integer number (520849945).

Almost surely, 2^2082168217 is an apocalyptic number.

It is an amenable number.

2082168217 is a deficient number, since it is larger than the sum of its proper divisors (1231563).

2082168217 is a wasteful number, since it uses less digits than its factorization.

2082168217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231562.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 2082168217 is about 45630.7814638321. The cubic root of 2082168217 is about 1276.9442523547.

The spelling of 2082168217 in words is "two billion, eighty-two million, one hundred sixty-eight thousand, two hundred seventeen".