641833 has 2 divisors, whose sum is σ = 641834. Its totient is φ = 641832.

The previous prime is 641827. The next prime is 641843. The reversal of 641833 is 338146.

641833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374544 + 267289 = 612^2 + 517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 641798 and 641807.

It is not a weakly prime, because it can be changed into another prime (641803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320916 + 320917.

It is an arithmetic number, because the mean of its divisors is an integer number (320917).

2⁶⁴¹⁸³³ is an apocalyptic number.

It is an amenable number.

641833 is a deficient number, since it is larger than the sum of its proper divisors (1).

641833 is an equidigital number, since it uses as much as digits as its factorization.

641833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 641833 is about 801.1448058872. The cubic root of 641833 is about 86.2595816562.

Adding to 641833 its reverse (338146), we get a palindrome (979979).

The spelling of 641833 in words is "six hundred forty-one thousand, eight hundred thirty-three".