4645985 has 4 divisors (see below), whose sum is σ = 5575188. Its totient is φ = 3716784.

The previous prime is 4645967. The next prime is 4645987. The reversal of 4645985 is 5895464.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 516961 + 4129024 = 719^2 + 2032^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645985 - 2¹⁶ = 4580449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4645987) 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, 464594 + ... + 464603.

It is an arithmetic number, because the mean of its divisors is an integer number (1393797).

Almost surely, 2^4645985 is an apocalyptic number.

It is an amenable number.

4645985 is a deficient number, since it is larger than the sum of its proper divisors (929203).

4645985 is an equidigital number, since it uses as much as digits as its factorization.

4645985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929202.

The product of its digits is 172800, while the sum is 41.

The square root of 4645985 is about 2155.4547084084. The cubic root of 4645985 is about 166.8627004453.

The spelling of 4645985 in words is "four million, six hundred forty-five thousand, nine hundred eighty-five".