3116471389 has 4 divisors (see below), whose sum is σ = 3116942620. Its totient is φ = 3116000160.

The previous prime is 3116471357. The next prime is 3116471401. The reversal of 3116471389 is 9831746113.

3116471389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9831746113 = 7 ⋅1404535159.

It can be written as a sum of positive squares in 2 ways, for example, as 1890771289 + 1225700100 = 43483^2 + 35010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3116471389 - 2⁵ = 3116471357 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 (3116471339) 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, 225552 + ... + 238969.

It is an arithmetic number, because the mean of its divisors is an integer number (779235655).

Almost surely, 2^3116471389 is an apocalyptic number.

It is an amenable number.

3116471389 is a deficient number, since it is larger than the sum of its proper divisors (471231).

3116471389 is an equidigital number, since it uses as much as digits as its factorization.

3116471389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471230.

The product of its digits is 108864, while the sum is 43.

The square root of 3116471389 is about 55825.3651040457. The cubic root of 3116471389 is about 1460.6776408028.

The spelling of 3116471389 in words is "three billion, one hundred sixteen million, four hundred seventy-one thousand, three hundred eighty-nine".