897866 has 8 divisors (see below), whose sum is σ = 1365984. Its totient is φ = 442540.

The previous prime is 897847. The next prime is 897877. The reversal of 897866 is 668798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

897866 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 3020 + ... + 3303.

It is an arithmetic number, because the mean of its divisors is an integer number (170748).

2⁸⁹⁷⁸⁶⁶ is an apocalyptic number.

897866 is a deficient number, since it is larger than the sum of its proper divisors (468118).

897866 is a wasteful number, since it uses less digits than its factorization.

897866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396.

The product of its digits is 145152, while the sum is 44.

The square root of 897866 is about 947.5579137974. The cubic root of 897866 is about 96.4725686480.

The spelling of 897866 in words is "eight hundred ninety-seven thousand, eight hundred sixty-six".