8940472369 has 2 divisors, whose sum is σ = 8940472370. Its totient is φ = 8940472368.

The previous prime is 8940472357. The next prime is 8940472459. The reversal of 8940472369 is 9632740498.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6746486769 + 2193985600 = 82137^2 + 46840^2 .

It is a cyclic number.

It is not a de Polignac number, because 8940472369 - 2¹³ = 8940464177 is a prime.

It is a super-2 number, since 2×8940472369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8940472469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4470236184 + 4470236185.

It is an arithmetic number, because the mean of its divisors is an integer number (4470236185).

Almost surely, 2^8940472369 is an apocalyptic number.

It is an amenable number.

8940472369 is a deficient number, since it is larger than the sum of its proper divisors (1).

8940472369 is an equidigital number, since it uses as much as digits as its factorization.

8940472369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 8940472369 is about 94554.0711392164. The cubic root of 8940472369 is about 2075.4876576971.

The spelling of 8940472369 in words is "eight billion, nine hundred forty million, four hundred seventy-two thousand, three hundred sixty-nine".