874865 has 8 divisors (see below), whose sum is σ = 1078440. Its totient is φ = 680832.

The previous prime is 874859. The next prime is 874873. The reversal of 874865 is 568478.

It can be written as a sum of positive squares in 4 ways, for example, as 44944 + 829921 = 212^2 + 911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-874865 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (134805).

2⁸⁷⁴⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

874865 is a deficient number, since it is larger than the sum of its proper divisors (203575).

874865 is a wasteful number, since it uses less digits than its factorization.

874865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771.

The product of its digits is 53760, while the sum is 38.

The square root of 874865 is about 935.3421833746. The cubic root of 874865 is about 95.6416399197.

The spelling of 874865 in words is "eight hundred seventy-four thousand, eight hundred sixty-five".