3117947653 has 4 divisors (see below), whose sum is σ = 3176776908. Its totient is φ = 3059118400.

The previous prime is 3117947647. The next prime is 3117947681. The reversal of 3117947653 is 3567497113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3567497113 = 193 ⋅18484441.

It can be written as a sum of positive squares in 2 ways, for example, as 1274275809 + 1843671844 = 35697^2 + 42938^2 .

It is a cyclic number.

It is not a de Polignac number, because 3117947653 - 2⁵ = 3117947621 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 (3117917653) 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, 29414548 + ... + 29414653.

It is an arithmetic number, because the mean of its divisors is an integer number (794194227).

Almost surely, 2^3117947653 is an apocalyptic number.

It is an amenable number.

3117947653 is a deficient number, since it is larger than the sum of its proper divisors (58829255).

3117947653 is an equidigital number, since it uses as much as digits as its factorization.

3117947653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58829254.

The product of its digits is 476280, while the sum is 46.

The square root of 3117947653 is about 55838.5857002127. The cubic root of 3117947653 is about 1460.9082440666.

The spelling of 3117947653 in words is "three billion, one hundred seventeen million, nine hundred forty-seven thousand, six hundred fifty-three".