897988 has 24 divisors (see below), whose sum is σ = 1934912. Its totient is φ = 355104.

The previous prime is 897983. The next prime is 898013. The reversal of 897988 is 889798.

It is not an unprimeable number, because it can be changed into a prime (897983) 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 7 ways as a sum of consecutive naturals, for example, 870 + ... + 1597.

2⁸⁹⁷⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

897988 is an abundant number, since it is smaller than the sum of its proper divisors (1036924).

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

897988 is a wasteful number, since it uses less digits than its factorization.

897988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491 (or 2489 counting only the distinct ones).

The product of its digits is 290304, while the sum is 49.

The square root of 897988 is about 947.6222876231. The cubic root of 897988 is about 96.4769379416.

The spelling of 897988 in words is "eight hundred ninety-seven thousand, nine hundred eighty-eight".