2104902617 has 4 divisors (see below), whose sum is σ = 2228720436. Its totient is φ = 1981084800.

The previous prime is 2104902607. The next prime is 2104902637. The reversal of 2104902617 is 7162094012.

It is a happy number.

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 1930372096 + 174530521 = 43936^2 + 13211^2 .

It is not a de Polignac number, because 2104902617 - 2²⁰ = 2103854041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104902607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61908884 + ... + 61908917.

It is an arithmetic number, because the mean of its divisors is an integer number (557180109).

Almost surely, 2^2104902617 is an apocalyptic number.

It is an amenable number.

2104902617 is a deficient number, since it is larger than the sum of its proper divisors (123817819).

2104902617 is a wasteful number, since it uses less digits than its factorization.

2104902617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123817818.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 2104902617 is about 45879.2177025720. The cubic root of 2104902617 is about 1281.5749284584.

Adding to 2104902617 its reverse (7162094012), we get a palindrome (9266996629).

The spelling of 2104902617 in words is "two billion, one hundred four million, nine hundred two thousand, six hundred seventeen".