897887 has 2 divisors, whose sum is σ = 897888. Its totient is φ = 897886.

The previous prime is 897881. The next prime is 897899. The reversal of 897887 is 788798.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897887 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (897881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448943 + 448944.

It is an arithmetic number, because the mean of its divisors is an integer number (448944).

2⁸⁹⁷⁸⁸⁷ is an apocalyptic number.

897887 is a deficient number, since it is larger than the sum of its proper divisors (1).

897887 is an equidigital number, since it uses as much as digits as its factorization.

897887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 47.

The square root of 897887 is about 947.5689948495. The cubic root of 897887 is about 96.4733207677.

The spelling of 897887 in words is "eight hundred ninety-seven thousand, eight hundred eighty-seven".