996504581 has 2 divisors, whose sum is σ = 996504582. Its totient is φ = 996504580.

The previous prime is 996504559. The next prime is 996504629. The reversal of 996504581 is 185405699.

It is a happy number.

996504581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866772481 + 129732100 = 29441^2 + 11390^2 .

It is a cyclic number.

It is not a de Polignac number, because 996504581 - 2¹⁴ = 996488197 is a prime.

It is a super-2 number, since 2×996504581² = 1986042759907971122, 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 (996504511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498252290 + 498252291.

It is an arithmetic number, because the mean of its divisors is an integer number (498252291).

Almost surely, 2^996504581 is an apocalyptic number.

It is an amenable number.

996504581 is a deficient number, since it is larger than the sum of its proper divisors (1).

996504581 is an equidigital number, since it uses as much as digits as its factorization.

996504581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 996504581 is about 31567.4607943053. The cubic root of 996504581 is about 998.8335001405.

The spelling of 996504581 in words is "nine hundred ninety-six million, five hundred four thousand, five hundred eighty-one".