641834 has 8 divisors (see below), whose sum is σ = 967140. Its totient is φ = 319456.

The previous prime is 641833. The next prime is 641843. The reversal of 641834 is 438146.

641834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 600625 + 41209 = 775^2 + 203^2 .

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

It is not an unprimeable number, because it can be changed into a prime (641833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 1134.

2⁶⁴¹⁸³⁴ is an apocalyptic number.

641834 is a deficient number, since it is larger than the sum of its proper divisors (325306).

641834 is a wasteful number, since it uses less digits than its factorization.

641834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464.

The product of its digits is 2304, while the sum is 26.

The square root of 641834 is about 801.1454299938. The cubic root of 641834 is about 86.2596264548.

The spelling of 641834 in words is "six hundred forty-one thousand, eight hundred thirty-four".