897019880 has 64 divisors (see below), whose sum is σ = 2104185600. Its totient is φ = 343732480.

The previous prime is 897019817. The next prime is 897019883. The reversal of 897019880 is 88910798.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (897019883) 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, 149009 + ... + 154911.

It is an arithmetic number, because the mean of its divisors is an integer number (32877900).

Almost surely, 2^897019880 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 897019880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052092800).

897019880 is an abundant number, since it is smaller than the sum of its proper divisors (1207165720).

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

897019880 is a wasteful number, since it uses less digits than its factorization.

897019880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074 (or 6070 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 897019880 is about 29950.2901488450. The cubic root of 897019880 is about 964.4225490997.

The spelling of 897019880 in words is "eight hundred ninety-seven million, nineteen thousand, eight hundred eighty".