3216684347 has 2 divisors, whose sum is σ = 3216684348. Its totient is φ = 3216684346.

The previous prime is 3216684313. The next prime is 3216684377. The reversal of 3216684347 is 7434866123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3216684347 - 2⁶ = 3216684283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3216684298 and 3216684307.

It is not a weakly prime, because it can be changed into another prime (3216684377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608342173 + 1608342174.

It is an arithmetic number, because the mean of its divisors is an integer number (1608342174).

Almost surely, 2^3216684347 is an apocalyptic number.

3216684347 is a deficient number, since it is larger than the sum of its proper divisors (1).

3216684347 is an equidigital number, since it uses as much as digits as its factorization.

3216684347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The square root of 3216684347 is about 56715.8209585297. The cubic root of 3216684347 is about 1476.1692304487.

The spelling of 3216684347 in words is "three billion, two hundred sixteen million, six hundred eighty-four thousand, three hundred forty-seven".