863941 has 4 divisors (see below), whose sum is σ = 930412. Its totient is φ = 797472.

The previous prime is 863921. The next prime is 863959. The reversal of 863941 is 149368.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148225 + 715716 = 385^2 + 846^2 .

It is not a de Polignac number, because 863941 - 2⁵ = 863909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863921) 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 3 ways as a sum of consecutive naturals, for example, 33216 + ... + 33241.

It is an arithmetic number, because the mean of its divisors is an integer number (232603).

2⁸⁶³⁹⁴¹ is an apocalyptic number.

It is an amenable number.

863941 is a deficient number, since it is larger than the sum of its proper divisors (66471).

863941 is a wasteful number, since it uses less digits than its factorization.

863941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66470.

The product of its digits is 5184, while the sum is 31.

The square root of 863941 is about 929.4842656011. The cubic root of 863941 is about 95.2418950905.

The spelling of 863941 in words is "eight hundred sixty-three thousand, nine hundred forty-one".