2117983 has 8 divisors (see below), whose sum is σ = 2429568. Its totient is φ = 1808664.

The previous prime is 2117977. The next prime is 2118007. The reversal of 2117983 is 3897112.

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 2117983 - 2¹³ = 2109791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2760 + ... + 3442.

It is an arithmetic number, because the mean of its divisors is an integer number (303696).

2^2117983 is an apocalyptic number.

2117983 is a deficient number, since it is larger than the sum of its proper divisors (311585).

2117983 is an equidigital number, since it uses as much as digits as its factorization.

2117983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133.

The product of its digits is 3024, while the sum is 31.

The square root of 2117983 is about 1455.3291723868. The cubic root of 2117983 is about 128.4224122457.

The spelling of 2117983 in words is "two million, one hundred seventeen thousand, nine hundred eighty-three".