641882001 has 8 divisors (see below), whose sum is σ = 883450624. Its totient is φ = 414117360.

The previous prime is 641881963. The next prime is 641882023. The reversal of 641882001 is 100288146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641882001 - 2¹⁰ = 641880977 is a prime.

It is a super-4 number, since 4×641882001⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 641882001.

It is not an unprimeable number, because it can be changed into a prime (641882081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3450886 + ... + 3451071.

It is an arithmetic number, because the mean of its divisors is an integer number (110431328).

Almost surely, 2^641882001 is an apocalyptic number.

It is an amenable number.

641882001 is a deficient number, since it is larger than the sum of its proper divisors (241568623).

641882001 is a wasteful number, since it uses less digits than its factorization.

641882001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901991.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 641882001 is about 25335.3902871063. The cubic root of 641882001 is about 862.6177677459.

The spelling of 641882001 in words is "six hundred forty-one million, eight hundred eighty-two thousand, one".