3644297369 has 2 divisors, whose sum is σ = 3644297370. Its totient is φ = 3644297368.

The previous prime is 3644297357. The next prime is 3644297387. The reversal of 3644297369 is 9637924463.

3644297369 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., 2556616969 + 1087680400 = 50563^2 + 32980^2 .

It is a cyclic number.

It is not a de Polignac number, because 3644297369 - 2²⁰ = 3643248793 is a prime.

It is a super-2 number, since 2×3644297369² = 26561806627400644322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3644297369.

It is not a weakly prime, because it can be changed into another prime (3644297339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1822148684 + 1822148685.

It is an arithmetic number, because the mean of its divisors is an integer number (1822148685).

Almost surely, 2^3644297369 is an apocalyptic number.

It is an amenable number.

3644297369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3644297369 is an equidigital number, since it uses as much as digits as its factorization.

3644297369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 53.

The square root of 3644297369 is about 60368.0161095261. The cubic root of 3644297369 is about 1538.8794582379.

The spelling of 3644297369 in words is "three billion, six hundred forty-four million, two hundred ninety-seven thousand, three hundred sixty-nine".