854869 has 2 divisors, whose sum is σ = 854870. Its totient is φ = 854868.

The previous prime is 854849. The next prime is 854881. The reversal of 854869 is 968458.

854869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 97969 = 870^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 854869 - 2¹⁷ = 723797 is a prime.

It is a super-2 number, since 2×854869² = 1461602014322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854849) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427434 + 427435.

It is an arithmetic number, because the mean of its divisors is an integer number (427435).

2⁸⁵⁴⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

854869 is a deficient number, since it is larger than the sum of its proper divisors (1).

854869 is an equidigital number, since it uses as much as digits as its factorization.

854869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 854869 is about 924.5912610446. The cubic root of 854869 is about 94.9073519650.

The spelling of 854869 in words is "eight hundred fifty-four thousand, eight hundred sixty-nine".