996652781 has 2 divisors, whose sum is σ = 996652782. Its totient is φ = 996652780.

The previous prime is 996652777. The next prime is 996652817. The reversal of 996652781 is 187256699.

Together with next prime (996652817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 928177156 + 68475625 = 30466^2 + 8275^2 .

It is a cyclic number.

It is not a de Polignac number, because 996652781 - 2² = 996652777 is a prime.

It is a super-2 number, since 2×996652781² = 1986633531750067922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996652711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498326390 + 498326391.

It is an arithmetic number, because the mean of its divisors is an integer number (498326391).

Almost surely, 2^996652781 is an apocalyptic number.

It is an amenable number.

996652781 is a deficient number, since it is larger than the sum of its proper divisors (1).

996652781 is an equidigital number, since it uses as much as digits as its factorization.

996652781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 53.

The square root of 996652781 is about 31569.8080608673. The cubic root of 996652781 is about 998.8830131382.

The spelling of 996652781 in words is "nine hundred ninety-six million, six hundred fifty-two thousand, seven hundred eighty-one".