858041 has 6 divisors (see below), whose sum is σ = 911790. Its totient is φ = 807296.

The previous prime is 858029. The next prime is 858043. The reversal of 858041 is 140858.

It can be written as a sum of positive squares in 3 ways, for example, as 92416 + 765625 = 304^2 + 875^2 .

It is not a de Polignac number, because 858041 - 2⁶ = 857977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 858041.

It is not an unprimeable number, because it can be changed into a prime (858043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1196 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (151965).

2⁸⁵⁸⁰⁴¹ is an apocalyptic number.

It is an amenable number.

858041 is a deficient number, since it is larger than the sum of its proper divisors (53749).

858041 is a wasteful number, since it uses less digits than its factorization.

858041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 2986 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 858041 is about 926.3050253561. The cubic root of 858041 is about 95.0245919715.

Adding to 858041 its reverse (140858), we get a palindrome (998899).

The spelling of 858041 in words is "eight hundred fifty-eight thousand, forty-one".