4247565 has 24 divisors (see below), whose sum is σ = 7907040. Its totient is φ = 1941408.

The previous prime is 4247561. The next prime is 4247567. The reversal of 4247565 is 5657424.

It is not a de Polignac number, because 4247565 - 2² = 4247561 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 4 + 2³ + 4¹¹ + 7³ + 5⁵ + 6⁶ + 5⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2155 + ... + 3624.

It is an arithmetic number, because the mean of its divisors is an integer number (329460).

Almost surely, 2^4247565 is an apocalyptic number.

It is an amenable number.

4247565 is a deficient number, since it is larger than the sum of its proper divisors (3659475).

4247565 is a wasteful number, since it uses less digits than its factorization.

4247565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801 (or 5794 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 4247565 is about 2060.9621539465. The cubic root of 4247565 is about 161.9496490374.

The spelling of 4247565 in words is "four million, two hundred forty-seven thousand, five hundred sixty-five".