897732237798 has 768 divisors, whose sum is σ = 2538974730240. Its totient is φ = 225662976000.

The previous prime is 897732237797. The next prime is 897732237811.

897732237798 is a `hidden beast` number, since 89 + 7 + 73 + 22 + 377 + 98 = 666.

897732237798 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897732237797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 8390020861 + ... + 8390020967.

It is an arithmetic number, because the mean of its divisors is an integer number (3305956680).

Almost surely, 2^897732237798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897732237798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269487365120).

897732237798 is an abundant number, since it is smaller than the sum of its proper divisors (1641242492442).

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

897732237798 is a wasteful number, since it uses less digits than its factorization.

897732237798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 330 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 72.

The spelling of 897732237798 in words is "eight hundred ninety-seven billion, seven hundred thirty-two million, two hundred thirty-seven thousand, seven hundred ninety-eight".