3646446413 has 2 divisors, whose sum is σ = 3646446414. Its totient is φ = 3646446412.

The previous prime is 3646446383. The next prime is 3646446451. The reversal of 3646446413 is 3146446463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3638140489 + 8305924 = 60317^2 + 2882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3646446413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3646446113) 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, 1823223206 + 1823223207.

It is an arithmetic number, because the mean of its divisors is an integer number (1823223207).

Almost surely, 2^3646446413 is an apocalyptic number.

It is an amenable number.

3646446413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3646446413 is an equidigital number, since it uses as much as digits as its factorization.

3646446413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 41.

The square root of 3646446413 is about 60385.8130110045. The cubic root of 3646446413 is about 1539.1818914621.

The spelling of 3646446413 in words is "three billion, six hundred forty-six million, four hundred forty-six thousand, four hundred thirteen".