44000989 has 2 divisors, whose sum is σ = 44000990. Its totient is φ = 44000988.

The previous prime is 44000987. The next prime is 44001019. The reversal of 44000989 is 98900044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 2295225 = 6458^2 + 1515^2 .

It is a cyclic number.

It is not a de Polignac number, because 44000989 - 2¹ = 44000987 is a prime.

It is a super-3 number, since 3×44000989³ (a number of 24 digits) contains 333 as substring.

Together with 44000987, 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 (44000987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22000494 + 22000495.

It is an arithmetic number, because the mean of its divisors is an integer number (22000495).

Almost surely, 2^44000989 is an apocalyptic number.

It is an amenable number.

44000989 is a deficient number, since it is larger than the sum of its proper divisors (1).

44000989 is an equidigital number, since it uses as much as digits as its factorization.

44000989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 44000989 is about 6633.3241289718. The cubic root of 44000989 is about 353.0374785995.

The spelling of 44000989 in words is "forty-four million, nine hundred eighty-nine", and thus it is an aban number.