44789221 has 2 divisors, whose sum is σ = 44789222. Its totient is φ = 44789220.

The previous prime is 44789219. The next prime is 44789243. The reversal of 44789221 is 12298744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34644996 + 10144225 = 5886^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 44789221 - 2¹ = 44789219 is a prime.

Together with 44789219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44789281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22394610 + 22394611.

It is an arithmetic number, because the mean of its divisors is an integer number (22394611).

Almost surely, 2^44789221 is an apocalyptic number.

It is an amenable number.

44789221 is a deficient number, since it is larger than the sum of its proper divisors (1).

44789221 is an equidigital number, since it uses as much as digits as its factorization.

44789221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 44789221 is about 6692.4749532591. The cubic root of 44789221 is about 355.1331141348.

The spelling of 44789221 in words is "forty-four million, seven hundred eighty-nine thousand, two hundred twenty-one".