2117206403 has 8 divisors (see below), whose sum is σ = 2280616800. Its totient is φ = 1953874368.

The previous prime is 2117206397. The next prime is 2117206417. The reversal of 2117206403 is 3046027112.

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 2117206403 - 2¹⁶ = 2117140867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2117200403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44258 + ... + 78696.

It is an arithmetic number, because the mean of its divisors is an integer number (285077100).

Almost surely, 2^2117206403 is an apocalyptic number.

2117206403 is a deficient number, since it is larger than the sum of its proper divisors (163410397).

2117206403 is a wasteful number, since it uses less digits than its factorization.

2117206403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39181.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2117206403 is about 46013.1112075678. Note that the first 3 decimals coincide. The cubic root of 2117206403 is about 1284.0671418891.

The spelling of 2117206403 in words is "two billion, one hundred seventeen million, two hundred six thousand, four hundred three".