875381 has 12 divisors (see below), whose sum is σ = 1005732. Its totient is φ = 757248.

The previous prime is 875377. The next prime is 875389. The reversal of 875381 is 183578.

It can be written as a sum of positive squares in 6 ways, for example, as 3025 + 872356 = 55^2 + 934^2 .

It is not a de Polignac number, because 875381 - 2² = 875377 is a prime.

It is a super-2 number, since 2×875381² = 1532583790322, which contains 22 as substring.

Its product of digits (6720) is a multiple of the sum of its prime factors (280).

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 875381.

It is not an unprimeable number, because it can be changed into a prime (875389) 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 11 ways as a sum of consecutive naturals, for example, 3641 + ... + 3873.

It is an arithmetic number, because the mean of its divisors is an integer number (83811).

2⁸⁷⁵³⁸¹ is an apocalyptic number.

It is an amenable number.

875381 is a deficient number, since it is larger than the sum of its proper divisors (130351).

875381 is a wasteful number, since it uses less digits than its factorization.

875381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 263 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 875381 is about 935.6179775956. The cubic root of 875381 is about 95.6604395390.

The spelling of 875381 in words is "eight hundred seventy-five thousand, three hundred eighty-one".