105685973 has 4 divisors (see below), whose sum is σ = 105881868. Its totient is φ = 105490080.

The previous prime is 105685967. The next prime is 105685981. The reversal of 105685973 is 379586501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 379586501 = 7 ⋅54226643.

It can be written as a sum of positive squares in 2 ways, for example, as 12794929 + 92891044 = 3577^2 + 9638^2 .

It is a cyclic number.

It is not a de Polignac number, because 105685973 - 2¹⁴ = 105669589 is a prime.

It is a super-2 number, since 2×105685973² = 22339049777913458, 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 (105685903) 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, 97136 + ... + 98217.

It is an arithmetic number, because the mean of its divisors is an integer number (26470467).

Almost surely, 2^105685973 is an apocalyptic number.

It is an amenable number.

105685973 is a deficient number, since it is larger than the sum of its proper divisors (195895).

105685973 is an equidigital number, since it uses as much as digits as its factorization.

105685973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195894.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 105685973 is about 10280.3683299773. The cubic root of 105685973 is about 472.7945372984.

The spelling of 105685973 in words is "one hundred five million, six hundred eighty-five thousand, nine hundred seventy-three".