641683 has 12 divisors (see below), whose sum is σ = 766480. Its totient is φ = 526176.

The previous prime is 641681. The next prime is 641701. The reversal of 641683 is 386146.

641683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641683 - 2¹ = 641681 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5833 + ... + 5941.

2⁶⁴¹⁶⁸³ is an apocalyptic number.

641683 is a deficient number, since it is larger than the sum of its proper divisors (124797).

641683 is a wasteful number, since it uses less digits than its factorization.

641683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 145 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 641683 is about 801.0511843821. The cubic root of 641683 is about 86.2528613487.

The spelling of 641683 in words is "six hundred forty-one thousand, six hundred eighty-three".