2117884973 has 16 divisors (see below), whose sum is σ = 2261468160. Its totient is φ = 1976486400.

The previous prime is 2117884943. The next prime is 2117884981. The reversal of 2117884973 is 3794887112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2117884973 - 2¹⁶ = 2117819437 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 (2117884903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229753 + ... + 1231473.

It is an arithmetic number, because the mean of its divisors is an integer number (141341760).

Almost surely, 2^2117884973 is an apocalyptic number.

It is an amenable number.

2117884973 is a deficient number, since it is larger than the sum of its proper divisors (143583187).

2117884973 is a wasteful number, since it uses less digits than its factorization.

2117884973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308.

The product of its digits is 677376, while the sum is 50.

The square root of 2117884973 is about 46020.4842760265. The cubic root of 2117884973 is about 1284.2043094900.

The spelling of 2117884973 in words is "two billion, one hundred seventeen million, eight hundred eighty-four thousand, nine hundred seventy-three".