852381 has 6 divisors (see below), whose sum is σ = 1231230. Its totient is φ = 568248.

The previous prime is 852367. The next prime is 852391. The reversal of 852381 is 183258.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 95481 = 870^2 + 309^2 .

It is not a de Polignac number, because 852381 - 2⁷ = 852253 is a prime.

It is a super-2 number, since 2×852381² = 1453106738322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852301) 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, 47346 + ... + 47363.

It is an arithmetic number, because the mean of its divisors is an integer number (205205).

2⁸⁵²³⁸¹ is an apocalyptic number.

It is an amenable number.

852381 is a deficient number, since it is larger than the sum of its proper divisors (378849).

852381 is a wasteful number, since it uses less digits than its factorization.

852381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94715 (or 94712 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 852381 is about 923.2448212690. The cubic root of 852381 is about 94.8151901098.

The spelling of 852381 in words is "eight hundred fifty-two thousand, three hundred eighty-one".