3201634643 has 4 divisors (see below), whose sum is σ = 3201753768. Its totient is φ = 3201515520.

The previous prime is 3201634637. The next prime is 3201634673. The reversal of 3201634643 is 3464361023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3201634643 - 2⁴ = 3201634627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3201634603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1880 + ... + 80042.

It is an arithmetic number, because the mean of its divisors is an integer number (800438442).

Almost surely, 2^3201634643 is an apocalyptic number.

3201634643 is a deficient number, since it is larger than the sum of its proper divisors (119125).

3201634643 is an equidigital number, since it uses as much as digits as its factorization.

3201634643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119124.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 3201634643 is about 56582.9889896248. The cubic root of 3201634643 is about 1473.8634765887.

Adding to 3201634643 its reverse (3464361023), we get a palindrome (6665995666).

The spelling of 3201634643 in words is "three billion, two hundred one million, six hundred thirty-four thousand, six hundred forty-three".