105847 has 4 divisors (see below), whose sum is σ = 120976. Its totient is φ = 90720.

The previous prime is 105829. The next prime is 105863. The reversal of 105847 is 748501.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 105847 - 2¹⁵ = 73079 is a prime.

It is a super-2 number, since 2×105847² = 22407174818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7554 + ... + 7567.

It is an arithmetic number, because the mean of its divisors is an integer number (30244).

2¹⁰⁵⁸⁴⁷ is an apocalyptic number.

105847 is a deficient number, since it is larger than the sum of its proper divisors (15129).

105847 is an equidigital number, since it uses as much as digits as its factorization.

105847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15128.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 105847 is about 325.3413591906. The cubic root of 105847 is about 47.3034537778.

It can be divided in two parts, 10584 and 7, that multiplied together give a cube (74088 = 42³).

The spelling of 105847 in words is "one hundred five thousand, eight hundred forty-seven".