996456999 has 4 divisors (see below), whose sum is σ = 1328609336. Its totient is φ = 664304664.

The previous prime is 996456997. The next prime is 996457051. The reversal of 996456999 is 999654699.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 996456999 - 2¹ = 996456997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996456997) 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 in 3 ways as a sum of consecutive naturals, for example, 166076164 + ... + 166076169.

It is an arithmetic number, because the mean of its divisors is an integer number (332152334).

Almost surely, 2^996456999 is an apocalyptic number.

996456999 is a deficient number, since it is larger than the sum of its proper divisors (332152337).

996456999 is a wasteful number, since it uses less digits than its factorization.

996456999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332152336.

The product of its digits is 42515280, while the sum is 66.

The square root of 996456999 is about 31566.7071295059. The cubic root of 996456999 is about 998.8176021530.

The spelling of 996456999 in words is "nine hundred ninety-six million, four hundred fifty-six thousand, nine hundred ninety-nine".