4890565 has 4 divisors (see below), whose sum is σ = 5868684. Its totient is φ = 3912448.

The previous prime is 4890563. The next prime is 4890593. The reversal of 4890565 is 5650984.

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 720801 + 4169764 = 849^2 + 2042^2 .

It is a cyclic number.

It is not a de Polignac number, because 4890565 - 2¹ = 4890563 is a prime.

It is a super-3 number, since 3×4890565³ (a number of 21 digits) contains 333 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 (4890563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489052 + ... + 489061.

It is an arithmetic number, because the mean of its divisors is an integer number (1467171).

Almost surely, 2^4890565 is an apocalyptic number.

It is an amenable number.

4890565 is a deficient number, since it is larger than the sum of its proper divisors (978119).

4890565 is an equidigital number, since it uses as much as digits as its factorization.

4890565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978118.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 4890565 is about 2211.4621859756. The cubic root of 4890565 is about 169.7408392574.

The spelling of 4890565 in words is "four million, eight hundred ninety thousand, five hundred sixty-five".