8844421 has 2 divisors, whose sum is σ = 8844422.
Its totient is φ = 8844420.
The previous prime is 8844401. The next prime is 8844457. The reversal of 8844421 is 1244488.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8673025 + 171396 = 2945^2 + 414^2
It is a cyclic number.
It is not a de Polignac number, because 8844421 - 25 = 8844389 is a prime.
It is a nialpdrome in base 10.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8844401) 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, 4422210 + 4422211.
It is an arithmetic number, because the mean of its divisors is an integer number (4422211).
Almost surely, 28844421 is an apocalyptic number.
It is an amenable number.
8844421 is a deficient number, since it is larger than the sum of its proper divisors (1).
8844421 is an equidigital number, since it uses as much as digits as its factorization.
8844421 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 8192, while the sum is 31.
The square root of 8844421 is about 2973.9571281375.
The cubic root of 8844421 is about 206.8028259288.
The spelling of 8844421 in words is "eight million, eight hundred forty-four thousand, four hundred twenty-one".