897329394 has 96 divisors (see below), whose sum is σ = 2281722240. Its totient is φ = 259801344.

The previous prime is 897329387. The next prime is 897329423. The reversal of 897329394 is 493923798.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 897329394.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200667 + ... + 205089.

It is an arithmetic number, because the mean of its divisors is an integer number (23767940).

Almost surely, 2^897329394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897329394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1140861120).

897329394 is an abundant number, since it is smaller than the sum of its proper divisors (1384392846).

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

897329394 is a wasteful number, since it uses less digits than its factorization.

897329394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481 (or 4458 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 897329394 is about 29955.4568317694. The cubic root of 897329394 is about 964.5334600400.

The spelling of 897329394 in words is "eight hundred ninety-seven million, three hundred twenty-nine thousand, three hundred ninety-four".