4565985 has 32 divisors (see below), whose sum is σ = 7916160. Its totient is φ = 2239488.

The previous prime is 4565971. The next prime is 4565987. The reversal of 4565985 is 5895654.

It is not a de Polignac number, because 4565985 - 2⁶ = 4565921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4565987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10329 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (247380).

Almost surely, 2^4565985 is an apocalyptic number.

It is an amenable number.

4565985 is a deficient number, since it is larger than the sum of its proper divisors (3350175).

4565985 is a wasteful number, since it uses less digits than its factorization.

4565985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its digits is 216000, while the sum is 42.

The square root of 4565985 is about 2136.8165574050. The cubic root of 4565985 is about 165.8994043828.

It can be divided in two parts, 456 and 5985, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 4565985 in words is "four million, five hundred sixty-five thousand, nine hundred eighty-five".