897632220 has 48 divisors (see below), whose sum is σ = 2531739168. Its totient is φ = 237619200.

The previous prime is 897632167. The next prime is 897632227. The reversal of 897632220 is 22236798.

897632220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897632227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46381 + ... + 62820.

It is an arithmetic number, because the mean of its divisors is an integer number (52744566).

Almost surely, 2^897632220 is an apocalyptic number.

It is an amenable number.

897632220 is an abundant number, since it is smaller than the sum of its proper divisors (1634106948).

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

897632220 is a wasteful number, since it uses less digits than its factorization.

897632220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109350 (or 109348 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 897632220 is about 29960.5110103282. The cubic root of 897632220 is about 964.6419497282.

The spelling of 897632220 in words is "eight hundred ninety-seven million, six hundred thirty-two thousand, two hundred twenty".