997696 has 56 divisors (see below), whose sum is σ = 2414016. Its totient is φ = 399360.

The previous prime is 997693. The next prime is 997699. The reversal of 997696 is 696799.

It is an interprime number because it is at equal distance from previous prime (997693) and next prime (997699).

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7551 + ... + 7681.

2⁹⁹⁷⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207008).

997696 is an abundant number, since it is smaller than the sum of its proper divisors (1416320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997696 is a wasteful number, since it uses less digits than its factorization.

997696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 157 counting only the distinct ones).

The product of its digits is 183708, while the sum is 46.

The square root of 997696 is about 998.8473356825. The cubic root of 997696 is about 99.9231409420.

The spelling of 997696 in words is "nine hundred ninety-seven thousand, six hundred ninety-six".