944561 has 2 divisors, whose sum is σ = 944562. Its totient is φ = 944560.

The previous prime is 944551. The next prime is 944563. The reversal of 944561 is 165449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913936 + 30625 = 956^2 + 175^2 .

It is an emirp because it is prime and its reverse (165449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 944561 - 2⁶ = 944497 is a prime.

Together with 944563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (944563) 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 as a sum of consecutive naturals, namely, 472280 + 472281.

It is an arithmetic number, because the mean of its divisors is an integer number (472281).

2⁹⁴⁴⁵⁶¹ is an apocalyptic number.

It is an amenable number.

944561 is a deficient number, since it is larger than the sum of its proper divisors (1).

944561 is an equidigital number, since it uses as much as digits as its factorization.

944561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 944561 is about 971.8852812961. The cubic root of 944561 is about 98.1167912048.

The spelling of 944561 in words is "nine hundred forty-four thousand, five hundred sixty-one".