3834694649 has 2 divisors, whose sum is σ = 3834694650. Its totient is φ = 3834694648.

The previous prime is 3834694639. The next prime is 3834694691. The reversal of 3834694649 is 9464964383.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3628255225 + 206439424 = 60235^2 + 14368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3834694649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3834694594 and 3834694603.

It is not a weakly prime, because it can be changed into another prime (3834694639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1917347324 + 1917347325.

It is an arithmetic number, because the mean of its divisors is an integer number (1917347325).

Almost surely, 2^3834694649 is an apocalyptic number.

It is an amenable number.

3834694649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3834694649 is an equidigital number, since it uses as much as digits as its factorization.

3834694649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13436928, while the sum is 56.

The square root of 3834694649 is about 61924.9113766019. The cubic root of 3834694649 is about 1565.2255523190.

The spelling of 3834694649 in words is "three billion, eight hundred thirty-four million, six hundred ninety-four thousand, six hundred forty-nine".