2102617 has 6 divisors (see below), whose sum is σ = 2311274. Its totient is φ = 1911360.

The previous prime is 2102593. The next prime is 2102623. The reversal of 2102617 is 7162012.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 793881 = 1144^2 + 891^2 .

It is not a de Polignac number, because 2102617 - 2⁷ = 2102489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102594 and 2102603.

It is not an unprimeable number, because it can be changed into a prime (2102647) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8568 + ... + 8809.

2^2102617 is an apocalyptic number.

It is an amenable number.

2102617 is a deficient number, since it is larger than the sum of its proper divisors (208657).

2102617 is a wasteful number, since it uses less digits than its factorization.

2102617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17399 (or 17388 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2102617 is about 1450.0403442663. The cubic root of 2102617 is about 128.1110892690. Note that the first 3 decimals are identical.

Adding to 2102617 its reverse (7162012), we get a palindrome (9264629).

The spelling of 2102617 in words is "two million, one hundred two thousand, six hundred seventeen".