841631 has 4 divisors (see below), whose sum is σ = 961872. Its totient is φ = 721392.

The previous prime is 841601. The next prime is 841637. The reversal of 841631 is 136148.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 841631 - 2¹⁴ = 825247 is a prime.

It is a super-3 number, since 3×841631³ = 1788489626233327773, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 841597 and 841606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (841637) 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, 60110 + ... + 60123.

It is an arithmetic number, because the mean of its divisors is an integer number (240468).

2⁸⁴¹⁶³¹ is an apocalyptic number.

841631 is a deficient number, since it is larger than the sum of its proper divisors (120241).

841631 is a wasteful number, since it uses less digits than its factorization.

841631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120240.

The product of its digits is 576, while the sum is 23.

The square root of 841631 is about 917.4044909417. The cubic root of 841631 is about 94.4149080520.

Adding to 841631 its reverse (136148), we get a palindrome (977779).

The spelling of 841631 in words is "eight hundred forty-one thousand, six hundred thirty-one".