897209328 has 80 divisors (see below), whose sum is σ = 2364670080. Its totient is φ = 293069568.

The previous prime is 897209293. The next prime is 897209377. The reversal of 897209328 is 823902798.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 729418 + ... + 730646.

It is an arithmetic number, because the mean of its divisors is an integer number (29558376).

Almost surely, 2^897209328 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 897209328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182335040).

897209328 is an abundant number, since it is smaller than the sum of its proper divisors (1467460752).

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

897209328 is a wasteful number, since it uses less digits than its factorization.

897209328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 1528 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 897209328 is about 29953.4526891308. The cubic root of 897209328 is about 964.4904387367.

The spelling of 897209328 in words is "eight hundred ninety-seven million, two hundred nine thousand, three hundred twenty-eight".