641883583 has 24 divisors (see below), whose sum is σ = 726703488. Its totient is φ = 566280000.

The previous prime is 641883581. The next prime is 641883589. The reversal of 641883583 is 385388146.

It is not a de Polignac number, because 641883583 - 2¹ = 641883581 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 (641883581) 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 23 ways as a sum of consecutive naturals, for example, 647218 + ... + 648208.

It is an arithmetic number, because the mean of its divisors is an integer number (30279312).

Almost surely, 2^641883583 is an apocalyptic number.

641883583 is a deficient number, since it is larger than the sum of its proper divisors (84819905).

641883583 is a wasteful number, since it uses less digits than its factorization.

641883583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1156 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 641883583 is about 25335.4215082363. The cubic root of 641883583 is about 862.6184764225.

The spelling of 641883583 in words is "six hundred forty-one million, eight hundred eighty-three thousand, five hundred eighty-three".