997070904 has 128 divisors (see below), whose sum is σ = 2939904000. Its totient is φ = 312221952.

The previous prime is 997070897. The next prime is 997070909. The reversal of 997070904 is 409070799.

997070904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 997070904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997070909) 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, 520252 + ... + 522164.

It is an arithmetic number, because the mean of its divisors is an integer number (22968000).

Almost surely, 2^997070904 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 997070904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469952000).

997070904 is an abundant number, since it is smaller than the sum of its proper divisors (1942833096).

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

997070904 is a wasteful number, since it uses less digits than its factorization.

997070904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 997070904 is about 31576.4295638376. The cubic root of 997070904 is about 999.0226798231.

The spelling of 997070904 in words is "nine hundred ninety-seven million, seventy thousand, nine hundred four".