944389 has 2 divisors, whose sum is σ = 944390. Its totient is φ = 944388.

The previous prime is 944387. The next prime is 944393. The reversal of 944389 is 983449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 187489 = 870^2 + 433^2 .

It is an emirp because it is prime and its reverse (983449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 944389 - 2¹ = 944387 is a prime.

Together with 944387, 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 (944387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472194 + 472195.

It is an arithmetic number, because the mean of its divisors is an integer number (472195).

2⁹⁴⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

944389 is a deficient number, since it is larger than the sum of its proper divisors (1).

944389 is an equidigital number, since it uses as much as digits as its factorization.

944389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 944389 is about 971.7967894575. The cubic root of 944389 is about 98.1108353119.

Subtracting 944389 from its reverse (983449), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 944389 in words is "nine hundred forty-four thousand, three hundred eighty-nine".