3388978673 has 2 divisors, whose sum is σ = 3388978674. Its totient is φ = 3388978672.

The previous prime is 3388978669. The next prime is 3388978717. The reversal of 3388978673 is 3768798833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3385261489 + 3717184 = 58183^2 + 1928^2 .

It is a cyclic number.

It is not a de Polignac number, because 3388978673 - 2² = 3388978669 is a prime.

It is a super-2 number, since 2×3388978673² = 22970352892097681858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3388978973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694489336 + 1694489337.

It is an arithmetic number, because the mean of its divisors is an integer number (1694489337).

Almost surely, 2^3388978673 is an apocalyptic number.

It is an amenable number.

3388978673 is a deficient number, since it is larger than the sum of its proper divisors (1).

3388978673 is an equidigital number, since it uses as much as digits as its factorization.

3388978673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 62.

The square root of 3388978673 is about 58214.9351369560. The cubic root of 3388978673 is about 1502.0680619547.

The spelling of 3388978673 in words is "three billion, three hundred eighty-eight million, nine hundred seventy-eight thousand, six hundred seventy-three".