996578 has 16 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 447360.

The previous prime is 996571. The next prime is 996599. The reversal of 996578 is 875699.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 996578.

It is not an unprimeable number, because it can be changed into a prime (996571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (103194).

2⁹⁹⁶⁵⁷⁸ is an apocalyptic number.

996578 is a deficient number, since it is larger than the sum of its proper divisors (654526).

996578 is a wasteful number, since it uses less digits than its factorization.

996578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its digits is 136080, while the sum is 44.

The square root of 996578 is about 998.2875337296. The cubic root of 996578 is about 99.8858029734.

The spelling of 996578 in words is "nine hundred ninety-six thousand, five hundred seventy-eight".