939855 has 16 divisors (see below), whose sum is σ = 1718784. Its totient is φ = 429600.

The previous prime is 939853. The next prime is 939871. The reversal of 939855 is 558939.

It is not a de Polignac number, because 939855 - 2¹ = 939853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4371 + ... + 4580.

It is an arithmetic number, because the mean of its divisors is an integer number (107424).

2⁹³⁹⁸⁵⁵ is an apocalyptic number.

939855 is a deficient number, since it is larger than the sum of its proper divisors (778929).

939855 is a wasteful number, since it uses less digits than its factorization.

939855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966.

The product of its digits is 48600, while the sum is 39.

The square root of 939855 is about 969.4611905590. The cubic root of 939855 is about 97.9535737336.

It can be divided in two parts, 9398 and 55, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 939855 in words is "nine hundred thirty-nine thousand, eight hundred fifty-five".