850897 has 2 divisors, whose sum is σ = 850898. Its totient is φ = 850896.

The previous prime is 850891. The next prime is 850933. The reversal of 850897 is 798058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 767376 + 83521 = 876^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 850897 - 2¹¹ = 848849 is a prime.

It is not a weakly prime, because it can be changed into another prime (850891) 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, 425448 + 425449.

It is an arithmetic number, because the mean of its divisors is an integer number (425449).

2⁸⁵⁰⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

850897 is a deficient number, since it is larger than the sum of its proper divisors (1).

850897 is an equidigital number, since it uses as much as digits as its factorization.

850897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 850897 is about 922.4407840073. The cubic root of 850897 is about 94.7601335574.

Subtracting from 850897 its sum of digits (37), we obtain a triangular number (850860 = T₁₃₀₄).

It can be divided in two parts, 8 and 50897, that added together give a palindrome (50905).

The spelling of 850897 in words is "eight hundred fifty thousand, eight hundred ninety-seven".