3655823449 has 2 divisors, whose sum is σ = 3655823450. Its totient is φ = 3655823448.

The previous prime is 3655823399. The next prime is 3655823471. The reversal of 3655823449 is 9443285563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3466265625 + 189557824 = 58875^2 + 13768^2 .

It is a cyclic number.

It is not a de Polignac number, because 3655823449 - 2¹¹ = 3655821401 is a prime.

It is not a weakly prime, because it can be changed into another prime (3655823489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827911724 + 1827911725.

It is an arithmetic number, because the mean of its divisors is an integer number (1827911725).

Almost surely, 2^3655823449 is an apocalyptic number.

It is an amenable number.

3655823449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3655823449 is an equidigital number, since it uses as much as digits as its factorization.

3655823449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 49.

The square root of 3655823449 is about 60463.4058666893. The cubic root of 3655823449 is about 1540.5001255544.

The spelling of 3655823449 in words is "three billion, six hundred fifty-five million, eight hundred twenty-three thousand, four hundred forty-nine".