861795 has 24 divisors (see below), whose sum is σ = 1630512. Its totient is φ = 417600.

The previous prime is 861761. The next prime is 861797. The reversal of 861795 is 597168.

861795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 861795 - 2¹⁶ = 796259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (67938).

2⁸⁶¹⁷⁹⁵ is an apocalyptic number.

861795 is a deficient number, since it is larger than the sum of its proper divisors (768717).

861795 is a wasteful number, since it uses less digits than its factorization.

861795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1760 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 861795 is about 928.3291442156. The cubic root of 861795 is about 95.1629704985.

It can be divided in two parts, 86 and 1795, that added together give a palindrome (1881).

The spelling of 861795 in words is "eight hundred sixty-one thousand, seven hundred ninety-five".