4644001 has 2 divisors, whose sum is σ = 4644002. Its totient is φ = 4644000.

The previous prime is 4643993. The next prime is 4644011. The reversal of 4644001 is 1004464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4004001 + 640000 = 2001^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 4644001 - 2³ = 4643993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4644001.

It is not a weakly prime, because it can be changed into another prime (4644011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322000 + 2322001.

It is an arithmetic number, because the mean of its divisors is an integer number (2322001).

Almost surely, 2^4644001 is an apocalyptic number.

It is an amenable number.

4644001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4644001 is an equidigital number, since it uses as much as digits as its factorization.

4644001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4644001 is about 2154.9944315473. The cubic root of 4644001 is about 166.8389449709.

Adding to 4644001 its reverse (1004464), we get a palindrome (5648465).

It can be divided in two parts, 464 and 4001, that added together give a triangular number (4465 = T₉₄).

The spelling of 4644001 in words is "four million, six hundred forty-four thousand, one".