897321284 has 24 divisors (see below), whose sum is σ = 1659282240. Its totient is φ = 423421344.

The previous prime is 897321283. The next prime is 897321349. The reversal of 897321284 is 482123798.

It is not an unprimeable number, because it can be changed into a prime (897321283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2459 + ... + 42434.

It is an arithmetic number, because the mean of its divisors is an integer number (69136760).

Almost surely, 2^897321284 is an apocalyptic number.

It is an amenable number.

897321284 is a deficient number, since it is larger than the sum of its proper divisors (761960956).

897321284 is a wasteful number, since it uses less digits than its factorization.

897321284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45179 (or 45177 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 897321284 is about 29955.3214638067. The cubic root of 897321284 is about 964.5305542360.

The spelling of 897321284 in words is "eight hundred ninety-seven million, three hundred twenty-one thousand, two hundred eighty-four".