3629644943 has 2 divisors, whose sum is σ = 3629644944. Its totient is φ = 3629644942.

The previous prime is 3629644939. The next prime is 3629645009. The reversal of 3629644943 is 3494469263.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3629644943 - 2² = 3629644939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3629644891 and 3629644900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3629644933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1814822471 + 1814822472.

It is an arithmetic number, because the mean of its divisors is an integer number (1814822472).

Almost surely, 2^3629644943 is an apocalyptic number.

3629644943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3629644943 is an equidigital number, since it uses as much as digits as its factorization.

3629644943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 50.

The square root of 3629644943 is about 60246.5346970264. The cubic root of 3629644943 is about 1536.8142586146.

The spelling of 3629644943 in words is "three billion, six hundred twenty-nine million, six hundred forty-four thousand, nine hundred forty-three".