4247765 has 8 divisors (see below), whose sum is σ = 5109048. Its totient is φ = 3390400.

The previous prime is 4247759. The next prime is 4247767. The reversal of 4247765 is 5677424.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 4092529 = 394^2 + 2023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4247765 - 2¹⁰ = 4246741 is a prime.

It is a d-powerful number, because it can be written as 4³ + 2¹⁵ + 4¹¹ + 7⁴ + 7⁵ + 6⁴ + 5³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615 + ... + 3915.

It is an arithmetic number, because the mean of its divisors is an integer number (638631).

Almost surely, 2^4247765 is an apocalyptic number.

It is an amenable number.

4247765 is a deficient number, since it is larger than the sum of its proper divisors (861283).

4247765 is a wasteful number, since it uses less digits than its factorization.

4247765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1959.

The product of its digits is 47040, while the sum is 35.

The square root of 4247765 is about 2061.0106744022. The cubic root of 4247765 is about 161.9521908405.

The spelling of 4247765 in words is "four million, two hundred forty-seven thousand, seven hundred sixty-five".