3456689671 has 2 divisors, whose sum is σ = 3456689672. Its totient is φ = 3456689670.

The previous prime is 3456689657. The next prime is 3456689723. The reversal of 3456689671 is 1769866543.

It is a weak prime.

It is an emirp because it is prime and its reverse (1769866543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3456689671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3456689651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728344835 + 1728344836.

It is an arithmetic number, because the mean of its divisors is an integer number (1728344836).

Almost surely, 2^3456689671 is an apocalyptic number.

3456689671 is a deficient number, since it is larger than the sum of its proper divisors (1).

3456689671 is an equidigital number, since it uses as much as digits as its factorization.

3456689671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 55.

The square root of 3456689671 is about 58793.6193051593. The cubic root of 3456689671 is about 1512.0058239035.

The spelling of 3456689671 in words is "three billion, four hundred fifty-six million, six hundred eighty-nine thousand, six hundred seventy-one".