It is a self number, because there is not a number n which added to its sum of digits gives 997711344.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2997711344 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 997711344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684509372).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
997711344 is a wasteful number, since it uses less digits than its factorization.
997711344 is an odious number, because the sum of its binary digits is odd.
The square root of 997711344 is about 31586.5690444531. The cubic root of 997711344 is about 999.2365319315.
The spelling of 997711344 in words is "nine hundred ninety-seven million, seven hundred eleven thousand, three hundred forty-four".