3117385207 has 4 divisors (see below), whose sum is σ = 3117789040. Its totient is φ = 3116981376.

The previous prime is 3117385199. The next prime is 3117385223. The reversal of 3117385207 is 7025837113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7025837113 = 79 ⋅88934647.

It is a cyclic number.

It is not a de Polignac number, because 3117385207 - 2³ = 3117385199 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 (3117385237) 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, 190107 + ... + 205852.

It is an arithmetic number, because the mean of its divisors is an integer number (779447260).

Almost surely, 2^3117385207 is an apocalyptic number.

3117385207 is a deficient number, since it is larger than the sum of its proper divisors (403833).

3117385207 is an equidigital number, since it uses as much as digits as its factorization.

3117385207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403832.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 3117385207 is about 55833.5491169960. The cubic root of 3117385207 is about 1460.8203944614.

The spelling of 3117385207 in words is "three billion, one hundred seventeen million, three hundred eighty-five thousand, two hundred seven".