905897 has 2 divisors, whose sum is σ = 905898. Its totient is φ = 905896.

The previous prime is 905843. The next prime is 905909. The reversal of 905897 is 798509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 609961 + 295936 = 781^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 905897 - 2⁶ = 905833 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 905897.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 905897.

It is not a weakly prime, because it can be changed into another prime (905197) 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 as a sum of consecutive naturals, namely, 452948 + 452949.

It is an arithmetic number, because the mean of its divisors is an integer number (452949).

2⁹⁰⁵⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

905897 is a deficient number, since it is larger than the sum of its proper divisors (1).

905897 is an equidigital number, since it uses as much as digits as its factorization.

905897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 905897 is about 951.7862154917. The cubic root of 905897 is about 96.7593496074.

The spelling of 905897 in words is "nine hundred five thousand, eight hundred ninety-seven".