862841 has 6 divisors (see below), whose sum is σ = 1003770. Its totient is φ = 739536.

The previous prime is 862819. The next prime is 862861. The reversal of 862841 is 148268.

It can be written as a sum of positive squares in only one way, i.e., 802816 + 60025 = 896^2 + 245^2 .

It is not a de Polignac number, because 862841 - 2⁶ = 862777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (862811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8756 + ... + 8853.

It is an arithmetic number, because the mean of its divisors is an integer number (167295).

2⁸⁶²⁸⁴¹ is an apocalyptic number.

It is an amenable number.

862841 is a deficient number, since it is larger than the sum of its proper divisors (140929).

862841 is a wasteful number, since it uses less digits than its factorization.

862841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17623 (or 17616 counting only the distinct ones).

The product of its digits is 3072, while the sum is 29.

The square root of 862841 is about 928.8923511366. The cubic root of 862841 is about 95.2014561484.

The spelling of 862841 in words is "eight hundred sixty-two thousand, eight hundred forty-one".