997056 has 56 divisors (see below), whose sum is σ = 2936240. Its totient is φ = 331776.

The previous prime is 997043. The next prime is 997057. The reversal of 997056 is 650799.

997056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 997056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997057) 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, 1440 + ... + 2016.

2⁹⁹⁷⁰⁵⁶ is an apocalyptic number.

997056 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 997056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468120).

997056 is an abundant number, since it is smaller than the sum of its proper divisors (1939184).

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

997056 is a wasteful number, since it uses less digits than its factorization.

997056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 997056 is about 998.5269150103. The cubic root of 997056 is about 99.9017702073.

The spelling of 997056 in words is "nine hundred ninety-seven thousand, fifty-six".