441631 has 2 divisors, whose sum is σ = 441632. Its totient is φ = 441630.

The previous prime is 441619. The next prime is 441647. The reversal of 441631 is 136144.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 441631 - 2¹¹ = 439583 is a prime.

It is a super-2 number, since 2×441631² = 390075880322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 441599 and 441608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220815 + 220816.

It is an arithmetic number, because the mean of its divisors is an integer number (220816).

2⁴⁴¹⁶³¹ is an apocalyptic number.

441631 is a deficient number, since it is larger than the sum of its proper divisors (1).

441631 is an equidigital number, since it uses as much as digits as its factorization.

441631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 19.

The square root of 441631 is about 664.5532333832. The cubic root of 441631 is about 76.1529123549.

Adding to 441631 its reverse (136144), we get a palindrome (577775).

The spelling of 441631 in words is "four hundred forty-one thousand, six hundred thirty-one".