897998706 has 96 divisors (see below), whose sum is σ = 2225688192. Its totient is φ = 259015680.

The previous prime is 897998681. The next prime is 897998707. The reversal of 897998706 is 607899798.

It is not an unprimeable number, because it can be changed into a prime (897998707) 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 47 ways as a sum of consecutive naturals, for example, 1333986 + ... + 1334658.

It is an arithmetic number, because the mean of its divisors is an integer number (23184252).

Almost surely, 2^897998706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897998706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1112844096).

897998706 is an abundant number, since it is smaller than the sum of its proper divisors (1327689486).

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

897998706 is a wasteful number, since it uses less digits than its factorization.

897998706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 63.

The square root of 897998706 is about 29966.6265368660. The cubic root of 897998706 is about 964.7732134610.

It can be divided in two parts, 897998 and 706, that added together give a square (898704 = 948²).

The spelling of 897998706 in words is "eight hundred ninety-seven million, nine hundred ninety-eight thousand, seven hundred six".