4228765 has 4 divisors (see below), whose sum is σ = 5074524. Its totient is φ = 3383008.

The previous prime is 4228759. The next prime is 4228771. The reversal of 4228765 is 5678224.

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

It is an interprime number because it is at equal distance from previous prime (4228759) and next prime (4228771).

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 1466521 = 1662^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4228765 - 2¹⁷ = 4097693 is a prime.

It is an Ulam number.

It is a Duffinian number.

4228765 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4228765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422872 + ... + 422881.

It is an arithmetic number, because the mean of its divisors is an integer number (1268631).

Almost surely, 2^4228765 is an apocalyptic number.

It is an amenable number.

4228765 is a deficient number, since it is larger than the sum of its proper divisors (845759).

4228765 is an equidigital number, since it uses as much as digits as its factorization.

4228765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845758.

The product of its digits is 26880, while the sum is 34.

The square root of 4228765 is about 2056.3961194284. The cubic root of 4228765 is about 161.7103624167.

The spelling of 4228765 in words is "four million, two hundred twenty-eight thousand, seven hundred sixty-five".