844824961 has 4 divisors (see below), whose sum is σ = 845348400. Its totient is φ = 844301524.

The previous prime is 844824941. The next prime is 844824977. The reversal of 844824961 is 169428448.

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 844824961 - 2¹⁹ = 844300673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844824941) 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 3 ways as a sum of consecutive naturals, for example, 259291 + ... + 262528.

It is an arithmetic number, because the mean of its divisors is an integer number (211337100).

Almost surely, 2^844824961 is an apocalyptic number.

It is an amenable number.

844824961 is a deficient number, since it is larger than the sum of its proper divisors (523439).

844824961 is a wasteful number, since it uses less digits than its factorization.

844824961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523438.

The product of its digits is 442368, while the sum is 46.

The square root of 844824961 is about 29065.8727892351. The cubic root of 844824961 is about 945.3419107491.

The spelling of 844824961 in words is "eight hundred forty-four million, eight hundred twenty-four thousand, nine hundred sixty-one".