3117939705 has 24 divisors (see below), whose sum is σ = 5406520392. Its totient is φ = 1662257664.

The previous prime is 3117939701. The next prime is 3117939709. The reversal of 3117939705 is 5079397113.

It is an interprime number because it is at equal distance from previous prime (3117939701) and next prime (3117939709).

It can be written as a sum of positive squares in 4 ways, for example, as 76527504 + 3041412201 = 8748^2 + 55149^2 .

It is not a de Polignac number, because 3117939705 - 2² = 3117939701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3117939701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118407 + ... + 142323.

It is an arithmetic number, because the mean of its divisors is an integer number (225271683).

Almost surely, 2^3117939705 is an apocalyptic number.

It is an amenable number.

3117939705 is a deficient number, since it is larger than the sum of its proper divisors (2288580687).

3117939705 is a wasteful number, since it uses less digits than its factorization.

3117939705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26825 (or 26822 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 45.

The square root of 3117939705 is about 55838.5145307430. The cubic root of 3117939705 is about 1460.9070027256.

The spelling of 3117939705 in words is "three billion, one hundred seventeen million, nine hundred thirty-nine thousand, seven hundred five".