2039091917 has 4 divisors (see below), whose sum is σ = 2039246880. Its totient is φ = 2038936956.

The previous prime is 2039091871. The next prime is 2039091931. The reversal of 2039091917 is 7191909302.

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 2039091917 - 2⁶ = 2039091853 is a prime.

It is a super-3 number, since 3×2039091917³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2039091947) 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 + ... + 84740.

It is an arithmetic number, because the mean of its divisors is an integer number (509811720).

Almost surely, 2^2039091917 is an apocalyptic number.

It is an amenable number.

2039091917 is a deficient number, since it is larger than the sum of its proper divisors (154963).

2039091917 is a wasteful number, since it uses less digits than its factorization.

2039091917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154962.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 2039091917 is about 45156.3053958138. The cubic root of 2039091917 is about 1268.0769285045.

The spelling of 2039091917 in words is "two billion, thirty-nine million, ninety-one thousand, nine hundred seventeen".