3643038671 has 4 divisors (see below), whose sum is σ = 3664096872. Its totient is φ = 3621980472.

The previous prime is 3643038661. The next prime is 3643038683. The reversal of 3643038671 is 1768303463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3643038671 - 2¹⁴ = 3643022287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643038601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10528841 + ... + 10529186.

It is an arithmetic number, because the mean of its divisors is an integer number (916024218).

Almost surely, 2^3643038671 is an apocalyptic number.

3643038671 is a deficient number, since it is larger than the sum of its proper divisors (21058201).

3643038671 is a wasteful number, since it uses less digits than its factorization.

3643038671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21058200.

The product of its (nonzero) digits is 217728, while the sum is 41.

The square root of 3643038671 is about 60357.5900032465. The cubic root of 3643038671 is about 1538.7022674704.

The spelling of 3643038671 in words is "three billion, six hundred forty-three million, thirty-eight thousand, six hundred seventy-one".