646041 has 8 divisors (see below), whose sum is σ = 939744. Its totient is φ = 391520.

The previous prime is 646039. The next prime is 646067. The reversal of 646041 is 140646.

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

It is a cyclic number.

It is not a de Polignac number, because 646041 - 2¹ = 646039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 645999 and 646017.

It is not an unprimeable number, because it can be changed into a prime (645041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9756 + ... + 9821.

It is an arithmetic number, because the mean of its divisors is an integer number (117468).

2⁶⁴⁶⁰⁴¹ is an apocalyptic number.

It is an amenable number.

646041 is a deficient number, since it is larger than the sum of its proper divisors (293703).

646041 is a wasteful number, since it uses less digits than its factorization.

646041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19591.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 646041 is about 803.7667572126. The cubic root of 646041 is about 86.4476835127.

Adding to 646041 its reverse (140646), we get a palindrome (786687).

It can be divided in two parts, 64 and 6041, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 646041 in words is "six hundred forty-six thousand, forty-one".