3347143661 has 2 divisors, whose sum is σ = 3347143662. Its totient is φ = 3347143660.

The previous prime is 3347143633. The next prime is 3347143727. The reversal of 3347143661 is 1663417433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1775021161 + 1572122500 = 42131^2 + 39650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3347143661 is a prime.

It is a super-2 number, since 2×3347143661² = 22406741374744965842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3347143361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1673571830 + 1673571831.

It is an arithmetic number, because the mean of its divisors is an integer number (1673571831).

Almost surely, 2^3347143661 is an apocalyptic number.

It is an amenable number.

3347143661 is a deficient number, since it is larger than the sum of its proper divisors (1).

3347143661 is an equidigital number, since it uses as much as digits as its factorization.

3347143661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 38.

The square root of 3347143661 is about 57854.5042412430. The cubic root of 3347143661 is about 1495.8617286020.

The spelling of 3347143661 in words is "three billion, three hundred forty-seven million, one hundred forty-three thousand, six hundred sixty-one".