938945069 has 2 divisors, whose sum is σ = 938945070. Its totient is φ = 938945068.

The previous prime is 938945039. The next prime is 938945087. The reversal of 938945069 is 960549839.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 932569444 + 6375625 = 30538^2 + 2525^2 .

It is an emirp because it is prime and its reverse (960549839) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 938945069 - 2¹² = 938940973 is a prime.

It is a super-2 number, since 2×938945069² = 1763235685198829522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 938945069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (938945039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469472534 + 469472535.

It is an arithmetic number, because the mean of its divisors is an integer number (469472535).

Almost surely, 2^938945069 is an apocalyptic number.

It is an amenable number.

938945069 is a deficient number, since it is larger than the sum of its proper divisors (1).

938945069 is an equidigital number, since it uses as much as digits as its factorization.

938945069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 938945069 is about 30642.2105762623. The cubic root of 938945069 is about 979.2195191494.

The spelling of 938945069 in words is "nine hundred thirty-eight million, nine hundred forty-five thousand, sixty-nine".