869081 has 2 divisors, whose sum is σ = 869082. Its totient is φ = 869080.

The previous prime is 869069. The next prime is 869119. The reversal of 869081 is 180968.

869081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855625 + 13456 = 925^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 869081 - 2⁶ = 869017 is a prime.

It is a super-2 number, since 2×869081² = 1510603569122, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (869021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434540 + 434541.

It is an arithmetic number, because the mean of its divisors is an integer number (434541).

2⁸⁶⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

869081 is a deficient number, since it is larger than the sum of its proper divisors (1).

869081 is an equidigital number, since it uses as much as digits as its factorization.

869081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 869081 is about 932.2451394349. The cubic root of 869081 is about 95.4304016722.

The spelling of 869081 in words is "eight hundred sixty-nine thousand, eighty-one".