850081 has 2 divisors, whose sum is σ = 850082. Its totient is φ = 850080.

The previous prime is 850063. The next prime is 850093. The reversal of 850081 is 180058.

850081 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., 839056 + 11025 = 916^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 850081 - 2⁵ = 850049 is a prime.

It is a super-2 number, since 2×850081² = 1445275413122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (850021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425040 + 425041.

It is an arithmetic number, because the mean of its divisors is an integer number (425041).

2⁸⁵⁰⁰⁸¹ is an apocalyptic number.

It is an amenable number.

850081 is a deficient number, since it is larger than the sum of its proper divisors (1).

850081 is an equidigital number, since it uses as much as digits as its factorization.

850081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 850081 is about 921.9983731005. The cubic root of 850081 is about 94.7298325927.

The spelling of 850081 in words is "eight hundred fifty thousand, eighty-one".