2117417 has 4 divisors (see below), whose sum is σ = 2228880. Its totient is φ = 2005956.

The previous prime is 2117411. The next prime is 2117419. The reversal of 2117417 is 7147112.

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 not a de Polignac number, because 2117417 - 2¹⁰ = 2116393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2117392 and 2117401.

It is not an unprimeable number, because it can be changed into a prime (2117411) 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, 55703 + ... + 55740.

It is an arithmetic number, because the mean of its divisors is an integer number (557220).

2^2117417 is an apocalyptic number.

It is an amenable number.

2117417 is a deficient number, since it is larger than the sum of its proper divisors (111463).

2117417 is a wasteful number, since it uses less digits than its factorization.

2117417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111462.

The product of its digits is 392, while the sum is 23.

The square root of 2117417 is about 1455.1347016685. The cubic root of 2117417 is about 128.4109715556.

Subtracting from 2117417 its product of digits (392), we obtain a square (2117025 = 1455²).

The spelling of 2117417 in words is "two million, one hundred seventeen thousand, four hundred seventeen".