996519001 has 2 divisors, whose sum is σ = 996519002. Its totient is φ = 996519000.

The previous prime is 996518993. The next prime is 996519019. The reversal of 996519001 is 100915699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760435776 + 236083225 = 27576^2 + 15365^2 .

It is a cyclic number.

It is not a de Polignac number, because 996519001 - 2³ = 996518993 is a prime.

It is not a weakly prime, because it can be changed into another prime (996519031) 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, 498259500 + 498259501.

It is an arithmetic number, because the mean of its divisors is an integer number (498259501).

Almost surely, 2^996519001 is an apocalyptic number.

It is an amenable number.

996519001 is a deficient number, since it is larger than the sum of its proper divisors (1).

996519001 is an equidigital number, since it uses as much as digits as its factorization.

996519001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 40.

The square root of 996519001 is about 31567.6891932241. The cubic root of 996519001 is about 998.8383180175.

The spelling of 996519001 in words is "nine hundred ninety-six million, five hundred nineteen thousand, one".