3656385349 has 2 divisors, whose sum is σ = 3656385350. Its totient is φ = 3656385348.

The previous prime is 3656385329. The next prime is 3656385377. The reversal of 3656385349 is 9435836563.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3354494724 + 301890625 = 57918^2 + 17375^2 .

It is a cyclic number.

It is not a de Polignac number, because 3656385349 - 2¹⁹ = 3655861061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3656385296 and 3656385305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3656385329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828192674 + 1828192675.

It is an arithmetic number, because the mean of its divisors is an integer number (1828192675).

Almost surely, 2^3656385349 is an apocalyptic number.

It is an amenable number.

3656385349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3656385349 is an equidigital number, since it uses as much as digits as its factorization.

3656385349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6998400, while the sum is 52.

The square root of 3656385349 is about 60468.0523003677. The cubic root of 3656385349 is about 1540.5790464586.

The spelling of 3656385349 in words is "three billion, six hundred fifty-six million, three hundred eighty-five thousand, three hundred forty-nine".