996905 has 24 divisors (see below), whose sum is σ = 1503432. Its totient is φ = 628992.

The previous prime is 996899. The next prime is 996953. The reversal of 996905 is 509699.

It can be written as a sum of positive squares in 4 ways, for example, as 50176 + 946729 = 224^2 + 973^2 .

It is not a de Polignac number, because 996905 - 2⁶ = 996841 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 996905.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3029 + ... + 3341.

It is an arithmetic number, because the mean of its divisors is an integer number (62643).

2⁹⁹⁶⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

996905 is a deficient number, since it is larger than the sum of its proper divisors (506527).

996905 is a wasteful number, since it uses less digits than its factorization.

996905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 996905 is about 998.4513007653. The cubic root of 996905 is about 99.8967267163.

The spelling of 996905 in words is "nine hundred ninety-six thousand, nine hundred five".