897993090 has 96 divisors (see below), whose sum is σ = 2395785600. Its totient is φ = 233291520.

The previous prime is 897993073. The next prime is 897993127. The reversal of 897993090 is 90399798.

It is a happy number.

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, 567921 + ... + 569499.

It is an arithmetic number, because the mean of its divisors is an integer number (24956100).

Almost surely, 2^897993090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897993090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197892800).

897993090 is an abundant number, since it is smaller than the sum of its proper divisors (1497792510).

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

897993090 is a wasteful number, since it uses less digits than its factorization.

897993090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1749 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 897993090 is about 29966.5328324783. The cubic root of 897993090 is about 964.7712022563.

The spelling of 897993090 in words is "eight hundred ninety-seven million, nine hundred ninety-three thousand, ninety".