897899 has 2 divisors, whose sum is σ = 897900. Its totient is φ = 897898.

The previous prime is 897887. The next prime is 897907. The reversal of 897899 is 998798.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897899 is a prime.

It is a super-2 number, since 2×897899² = 1612445228402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (897829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448949 + 448950.

It is an arithmetic number, because the mean of its divisors is an integer number (448950).

2⁸⁹⁷⁸⁹⁹ is an apocalyptic number.

897899 is a deficient number, since it is larger than the sum of its proper divisors (1).

897899 is an equidigital number, since it uses as much as digits as its factorization.

897899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 50.

The square root of 897899 is about 947.5753268210. The cubic root of 897899 is about 96.4737505452.

It can be divided in two parts, 89789 and 9, that added together give a palindrome (89798).

The spelling of 897899 in words is "eight hundred ninety-seven thousand, eight hundred ninety-nine".