850939 has 4 divisors (see below), whose sum is σ = 856800. Its totient is φ = 845080.

The previous prime is 850933. The next prime is 850943. The reversal of 850939 is 939058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939058 = 2 ⋅469529.

It is a cyclic number.

It is not a de Polignac number, because 850939 - 2⁹ = 850427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2707 + ... + 3004.

It is an arithmetic number, because the mean of its divisors is an integer number (214200).

2⁸⁵⁰⁹³⁹ is an apocalyptic number.

850939 is a deficient number, since it is larger than the sum of its proper divisors (5861).

850939 is a wasteful number, since it uses less digits than its factorization.

850939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 850939 is about 922.4635494154. The cubic root of 850939 is about 94.7616926416.

The spelling of 850939 in words is "eight hundred fifty thousand, nine hundred thirty-nine".