996438953 has 2 divisors, whose sum is σ = 996438954. Its totient is φ = 996438952.

The previous prime is 996438931. The next prime is 996438991. The reversal of 996438953 is 359834699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 982697104 + 13741849 = 31348^2 + 3707^2 .

It is a cyclic number.

It is not a de Polignac number, because 996438953 - 2¹⁸ = 996176809 is a prime.

It is not a weakly prime, because it can be changed into another prime (996438923) 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, 498219476 + 498219477.

It is an arithmetic number, because the mean of its divisors is an integer number (498219477).

Almost surely, 2^996438953 is an apocalyptic number.

It is an amenable number.

996438953 is a deficient number, since it is larger than the sum of its proper divisors (1).

996438953 is an equidigital number, since it uses as much as digits as its factorization.

996438953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6298560, while the sum is 56.

The square root of 996438953 is about 31566.4212890850. The cubic root of 996438953 is about 998.8115725330.

The spelling of 996438953 in words is "nine hundred ninety-six million, four hundred thirty-eight thousand, nine hundred fifty-three".