4243765 has 8 divisors (see below), whose sum is σ = 5116320. Its totient is φ = 3379152.

The previous prime is 4243747. The next prime is 4243781. The reversal of 4243765 is 5673424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243765 is a prime.

It is a d-powerful number, because it can be written as 4⁷ + 2¹⁵ + 4¹¹ + 3⁴ + 7 + 6³ + 5 .

4243765 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735 + ... + 3004.

It is an arithmetic number, because the mean of its divisors is an integer number (639540).

Almost surely, 2^4243765 is an apocalyptic number.

It is an amenable number.

4243765 is a deficient number, since it is larger than the sum of its proper divisors (872555).

4243765 is a wasteful number, since it uses less digits than its factorization.

4243765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971.

The product of its digits is 20160, while the sum is 31.

The square root of 4243765 is about 2060.0400481544. The cubic root of 4243765 is about 161.9013396116.

The spelling of 4243765 in words is "four million, two hundred forty-three thousand, seven hundred sixty-five".