897870880 has 96 divisors (see below), whose sum is σ = 2182695984. Its totient is φ = 348880896.

The previous prime is 897870829. The next prime is 897870881. The reversal of 897870880 is 88078798.

It can be written as a sum of positive squares in 8 ways, for example, as 44997264 + 852873616 = 6708^2 + 29204^2 .

It is not an unprimeable number, because it can be changed into a prime (897870881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957772 + ... + 958708.

Almost surely, 2^897870880 is an apocalyptic number.

897870880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897870880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091347992).

897870880 is an abundant number, since it is smaller than the sum of its proper divisors (1284825104).

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

897870880 is a wasteful number, since it uses less digits than its factorization.

897870880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 55.

The square root of 897870880 is about 29964.4936549911. The cubic root of 897870880 is about 964.7274342737.

The spelling of 897870880 in words is "eight hundred ninety-seven million, eight hundred seventy thousand, eight hundred eighty".