997289104 has 80 divisors (see below), whose sum is σ = 2253570048. Its totient is φ = 418720896.

The previous prime is 997289101. The next prime is 997289123. The reversal of 997289104 is 401982799.

997289104 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 (997289101) 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, 2603697 + ... + 2604079.

Almost surely, 2^997289104 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 997289104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126785024).

997289104 is an abundant number, since it is smaller than the sum of its proper divisors (1256280944).

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

997289104 is a wasteful number, since it uses less digits than its factorization.

997289104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 997289104 is about 31579.8844836393. The cubic root of 997289104 is about 999.0955502172.

The spelling of 997289104 in words is "nine hundred ninety-seven million, two hundred eighty-nine thousand, one hundred four".