897880 has 16 divisors (see below), whose sum is σ = 2020320. Its totient is φ = 359136.

The previous prime is 897877. The next prime is 897881. The reversal of 897880 is 88798.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 22447 = 897880 / (8 + 9 + 7 + 8 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897881) 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 3 ways as a sum of consecutive naturals, for example, 11184 + ... + 11263.

It is an arithmetic number, because the mean of its divisors is an integer number (126270).

2⁸⁹⁷⁸⁸⁰ is an apocalyptic number.

It is an amenable number.

897880 is an abundant number, since it is smaller than the sum of its proper divisors (1122440).

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

897880 is a wasteful number, since it uses less digits than its factorization.

897880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22458 (or 22454 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 897880 is about 947.5653011798. The cubic root of 897880 is about 96.4730700625.

The spelling of 897880 in words is "eight hundred ninety-seven thousand, eight hundred eighty".