844481 has 4 divisors (see below), whose sum is σ = 921264. Its totient is φ = 767700.

The previous prime is 844469. The next prime is 844483. The reversal of 844481 is 184448.

844481 = 79² + 80² + ... + 144².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 844481 - 2¹⁰ = 843457 is a prime.

It is a super-2 number, since 2×844481² = 1426296318722, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 844481.

It is not an unprimeable number, because it can be changed into a prime (844483) 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, 38375 + ... + 38396.

It is an arithmetic number, because the mean of its divisors is an integer number (230316).

2⁸⁴⁴⁴⁸¹ is an apocalyptic number.

It is an amenable number.

844481 is a deficient number, since it is larger than the sum of its proper divisors (76783).

844481 is a wasteful number, since it uses less digits than its factorization.

844481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76782.

The product of its digits is 4096, while the sum is 29.

The square root of 844481 is about 918.9564733980. The cubic root of 844481 is about 94.5213598218.

The spelling of 844481 in words is "eight hundred forty-four thousand, four hundred eighty-one".