897215552 has 56 divisors (see below), whose sum is σ = 1816483032. Its totient is φ = 439603200.

The previous prime is 897215531. The next prime is 897215567. The reversal of 897215552 is 255512798.

It can be written as a sum of positive squares in 4 ways, for example, as 24840256 + 872375296 = 4984^2 + 29536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845102 + ... + 846162.

It is an arithmetic number, because the mean of its divisors is an integer number (32437197).

Almost surely, 2^897215552 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 897215552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908241516).

897215552 is an abundant number, since it is smaller than the sum of its proper divisors (919267480).

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

897215552 is a wasteful number, since it uses less digits than its factorization.

897215552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1317 counting only the distinct ones).

The product of its digits is 252000, while the sum is 44.

The square root of 897215552 is about 29953.5565834844. The cubic root of 897215552 is about 964.4926689761.

The spelling of 897215552 in words is "eight hundred ninety-seven million, two hundred fifteen thousand, five hundred fifty-two".