897091800 has 384 divisors, whose sum is σ = 3240864000. Its totient is φ = 203212800.

The previous prime is 897091781. The next prime is 897091807. The reversal of 897091800 is 8190798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897091807) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8230146 + ... + 8230254.

It is an arithmetic number, because the mean of its divisors is an integer number (8439750).

Almost surely, 2^897091800 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 897091800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620432000).

897091800 is an abundant number, since it is smaller than the sum of its proper divisors (2343772200).

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

897091800 is a wasteful number, since it uses less digits than its factorization.

897091800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 897091800 is about 29951.4907809278. The cubic root of 897091800 is about 964.4483231164.

The spelling of 897091800 in words is "eight hundred ninety-seven million, ninety-one thousand, eight hundred".