997896 has 16 divisors (see below), whose sum is σ = 2494800. Its totient is φ = 332624.

The previous prime is 997891. The next prime is 997897. The reversal of 997896 is 698799.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (997891) by changing a digit.

997896 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20766 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (155925).

2⁹⁹⁷⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

997896 is an abundant number, since it is smaller than the sum of its proper divisors (1496904).

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

997896 is a wasteful number, since it uses less digits than its factorization.

997896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41588 (or 41584 counting only the distinct ones).

The product of its digits is 244944, while the sum is 48.

The square root of 997896 is about 998.9474460651. The cubic root of 997896 is about 99.9298174222.

The spelling of 997896 in words is "nine hundred ninety-seven thousand, eight hundred ninety-six".