997444096 has 160 divisors (see below), whose sum is σ = 2333422080. Its totient is φ = 421478400.

The previous prime is 997444081. The next prime is 997444099. The reversal of 997444096 is 690444799.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (997444099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5063070 + ... + 5063266.

It is an arithmetic number, because the mean of its divisors is an integer number (14583888).

Almost surely, 2^997444096 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 997444096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1166711040).

997444096 is an abundant number, since it is smaller than the sum of its proper divisors (1335977984).

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

997444096 is a wasteful number, since it uses less digits than its factorization.

997444096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 997444096 is about 31582.3383554796. The cubic root of 997444096 is about 999.1473051181.

The spelling of 997444096 in words is "nine hundred ninety-seven million, four hundred forty-four thousand, ninety-six".