3643630343 has 2 divisors, whose sum is σ = 3643630344. Its totient is φ = 3643630342.

The previous prime is 3643630339. The next prime is 3643630387. The reversal of 3643630343 is 3430363463.

3643630343 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 is a cyclic number.

It is not a de Polignac number, because 3643630343 - 2² = 3643630339 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3643638343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821815171 + 1821815172.

It is an arithmetic number, because the mean of its divisors is an integer number (1821815172).

Almost surely, 2^3643630343 is an apocalyptic number.

3643630343 is a deficient number, since it is larger than the sum of its proper divisors (1).

3643630343 is an equidigital number, since it uses as much as digits as its factorization.

3643630343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 35.

The square root of 3643630343 is about 60362.4911927929. The cubic root of 3643630343 is about 1538.7855640302.

The spelling of 3643630343 in words is "three billion, six hundred forty-three million, six hundred thirty thousand, three hundred forty-three".