2182977217 has 4 divisors (see below), whose sum is σ = 2210609920. Its totient is φ = 2155344516.

The previous prime is 2182977187. The next prime is 2182977229. The reversal of 2182977217 is 7127792812.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2182977217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2182977257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13816233 + ... + 13816390.

It is an arithmetic number, because the mean of its divisors is an integer number (552652480).

Almost surely, 2^2182977217 is an apocalyptic number.

It is an amenable number.

2182977217 is a deficient number, since it is larger than the sum of its proper divisors (27632703).

2182977217 is an equidigital number, since it uses as much as digits as its factorization.

2182977217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27632702.

The product of its digits is 197568, while the sum is 46.

The square root of 2182977217 is about 46722.3417328370. The cubic root of 2182977217 is about 1297.2282596390.

The spelling of 2182977217 in words is "two billion, one hundred eighty-two million, nine hundred seventy-seven thousand, two hundred seventeen".