997286444 has 96 divisors (see below), whose sum is σ = 2242791936. Its totient is φ = 376750080.

The previous prime is 997286429. The next prime is 997286449. The reversal of 997286444 is 444682799.

997286444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (997286449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3403562 + ... + 3403854.

It is an arithmetic number, because the mean of its divisors is an integer number (23362416).

Almost surely, 2^997286444 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 997286444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1121395968).

997286444 is an abundant number, since it is smaller than the sum of its proper divisors (1245505492).

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

997286444 is a wasteful number, since it uses less digits than its factorization.

997286444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 613 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The square root of 997286444 is about 31579.8423681943. The cubic root of 997286444 is about 999.0946619437.

The spelling of 997286444 in words is "nine hundred ninety-seven million, two hundred eighty-six thousand, four hundred forty-four".