2117707 has 8 divisors (see below), whose sum is σ = 2295216. Its totient is φ = 1946112.

The previous prime is 2117701. The next prime is 2117711. The reversal of 2117707 is 7077112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2117707 - 2³ = 2117699 is a prime.

It is a super-3 number, since 3×2117707³ = 28491733350790176729, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2117701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (286902).

2^2117707 is an apocalyptic number.

2117707 is a deficient number, since it is larger than the sum of its proper divisors (177509).

2117707 is a wasteful number, since it uses less digits than its factorization.

2117707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957.

The product of its (nonzero) digits is 686, while the sum is 25.

The square root of 2117707 is about 1455.2343453891. The cubic root of 2117707 is about 128.4168336479.

The spelling of 2117707 in words is "two million, one hundred seventeen thousand, seven hundred seven".