944809361 has 2 divisors, whose sum is σ = 944809362. Its totient is φ = 944809360.

The previous prime is 944809343. The next prime is 944809399. The reversal of 944809361 is 163908449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646176400 + 298632961 = 25420^2 + 17281^2 .

It is an emirp because it is prime and its reverse (163908449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 944809361 - 2²² = 940615057 is a prime.

It is a super-3 number, since 3×944809361³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (944809301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472404680 + 472404681.

It is an arithmetic number, because the mean of its divisors is an integer number (472404681).

Almost surely, 2^944809361 is an apocalyptic number.

It is an amenable number.

944809361 is a deficient number, since it is larger than the sum of its proper divisors (1).

944809361 is an equidigital number, since it uses as much as digits as its factorization.

944809361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 944809361 is about 30737.7513979146. The cubic root of 944809361 is about 981.2538999615.

The spelling of 944809361 in words is "nine hundred forty-four million, eight hundred nine thousand, three hundred sixty-one".