3389729657 has 2 divisors, whose sum is σ = 3389729658. Its totient is φ = 3389729656.

The previous prime is 3389729647. The next prime is 3389729687. The reversal of 3389729657 is 7569279833.

3389729657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2812817296 + 576912361 = 53036^2 + 24019^2 .

It is a cyclic number.

It is not a de Polignac number, because 3389729657 - 2²⁴ = 3372952441 is a prime.

It is a super-2 number, since 2×3389729657² = 22980534295090675298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3389729596 and 3389729605.

It is not a weakly prime, because it can be changed into another prime (3389729647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694864828 + 1694864829.

It is an arithmetic number, because the mean of its divisors is an integer number (1694864829).

Almost surely, 2^3389729657 is an apocalyptic number.

It is an amenable number.

3389729657 is a deficient number, since it is larger than the sum of its proper divisors (1).

3389729657 is an equidigital number, since it uses as much as digits as its factorization.

3389729657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 59.

The square root of 3389729657 is about 58221.3848770364. The cubic root of 3389729657 is about 1502.1790045009.

The spelling of 3389729657 in words is "three billion, three hundred eighty-nine million, seven hundred twenty-nine thousand, six hundred fifty-seven".