996988441 has 2 divisors, whose sum is σ = 996988442. Its totient is φ = 996988440.

The previous prime is 996988417. The next prime is 996988451. The reversal of 996988441 is 144889699.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647448025 + 349540416 = 25445^2 + 18696^2 .

It is an emirp because it is prime and its reverse (144889699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996988441 - 2¹⁷ = 996857369 is a prime.

It is a super-2 number, since 2×996988441² = 1987971902975220962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (996988451) 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, 498494220 + 498494221.

It is an arithmetic number, because the mean of its divisors is an integer number (498494221).

Almost surely, 2^996988441 is an apocalyptic number.

It is an amenable number.

996988441 is a deficient number, since it is larger than the sum of its proper divisors (1).

996988441 is an equidigital number, since it uses as much as digits as its factorization.

996988441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 58.

The square root of 996988441 is about 31575.1237685619. The cubic root of 996988441 is about 998.9951375898.

The spelling of 996988441 in words is "nine hundred ninety-six million, nine hundred eighty-eight thousand, four hundred forty-one".