996549 has 4 divisors (see below), whose sum is σ = 1328736. Its totient is φ = 664364.

The previous prime is 996539. The next prime is 996551. The reversal of 996549 is 945699.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 996549 - 2⁸ = 996293 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 996549.

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 996549.

It is not an unprimeable number, because it can be changed into a prime (996529) 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 3 ways as a sum of consecutive naturals, for example, 166089 + ... + 166094.

It is an arithmetic number, because the mean of its divisors is an integer number (332184).

2⁹⁹⁶⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

996549 is a deficient number, since it is larger than the sum of its proper divisors (332187).

996549 is a wasteful number, since it uses less digits than its factorization.

996549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332186.

The product of its digits is 87480, while the sum is 42.

The square root of 996549 is about 998.2730087506. The cubic root of 996549 is about 99.8848340857.

The spelling of 996549 in words is "nine hundred ninety-six thousand, five hundred forty-nine".