4685865 has 16 divisors (see below), whose sum is σ = 7700928. Its totient is φ = 2431296.

The previous prime is 4685843. The next prime is 4685869. The reversal of 4685865 is 5685864.

It is not a de Polignac number, because 4685865 - 2⁵ = 4685833 is a prime.

It is an Ulam number.

4685865 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4685869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3667 + ... + 4776.

It is an arithmetic number, because the mean of its divisors is an integer number (481308).

Almost surely, 2^4685865 is an apocalyptic number.

It is an amenable number.

4685865 is a deficient number, since it is larger than the sum of its proper divisors (3015063).

4685865 is a wasteful number, since it uses less digits than its factorization.

4685865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8488.

The product of its digits is 230400, while the sum is 42.

The square root of 4685865 is about 2164.6858894537. The cubic root of 4685865 is about 167.3387770733.

Subtracting 4685865 from its reverse (5685864), we obtain a palindrome (999999).

The spelling of 4685865 in words is "four million, six hundred eighty-five thousand, eight hundred sixty-five".