996517 has 4 divisors (see below), whose sum is σ = 1004256. Its totient is φ = 988780.

The previous prime is 996511. The next prime is 996529. The reversal of 996517 is 715699.

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 a de Polignac number, because none of the positive numbers 2^k-996517 is a prime.

It is a super-2 number, since 2×996517² = 1986092262578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996511) 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, 3673 + ... + 3934.

It is an arithmetic number, because the mean of its divisors is an integer number (251064).

2⁹⁹⁶⁵¹⁷ is an apocalyptic number.

It is an amenable number.

996517 is a deficient number, since it is larger than the sum of its proper divisors (7739).

996517 is a wasteful number, since it uses less digits than its factorization.

996517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738.

The product of its digits is 17010, while the sum is 37.

The square root of 996517 is about 998.2569809423. The cubic root of 996517 is about 99.8837649465.

The spelling of 996517 in words is "nine hundred ninety-six thousand, five hundred seventeen".