816441 has 8 divisors (see below), whose sum is σ = 1114080. Its totient is φ = 531552.

The previous prime is 816427. The next prime is 816443. The reversal of 816441 is 144618.

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

It is not a de Polignac number, because 816441 - 2⁶ = 816377 is a prime.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (816443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3036 + ... + 3293.

It is an arithmetic number, because the mean of its divisors is an integer number (139260).

2⁸¹⁶⁴⁴¹ is an apocalyptic number.

It is an amenable number.

816441 is a deficient number, since it is larger than the sum of its proper divisors (297639).

816441 is a wasteful number, since it uses less digits than its factorization.

816441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375.

The product of its digits is 768, while the sum is 24.

The square root of 816441 is about 903.5712478825. The cubic root of 816441 is about 93.4634056610.

The spelling of 816441 in words is "eight hundred sixteen thousand, four hundred forty-one".