861675 has 12 divisors (see below), whose sum is σ = 1424760. Its totient is φ = 459520.

The previous prime is 861659. The next prime is 861691. The reversal of 861675 is 576168.

It is an interprime number because it is at equal distance from previous prime (861659) and next prime (861691).

It is not a de Polignac number, because 861675 - 2⁴ = 861659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5670 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (118730).

2⁸⁶¹⁶⁷⁵ is an apocalyptic number.

861675 is a deficient number, since it is larger than the sum of its proper divisors (563085).

861675 is a wasteful number, since it uses less digits than its factorization.

861675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502 (or 11497 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 861675 is about 928.2645097169. The cubic root of 861675 is about 95.1585533279.

The spelling of 861675 in words is "eight hundred sixty-one thousand, six hundred seventy-five".