4428727 has 4 divisors (see below), whose sum is σ = 4458600. Its totient is φ = 4398856.

The previous prime is 4428713. The next prime is 4428737. The reversal of 4428727 is 7278244.

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

It is a cyclic number.

It is not a de Polignac number, because 4428727 - 2¹⁵ = 4395959 is a prime.

It is a super-2 number, since 2×4428727² = 39227245681058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4428692 and 4428701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428737) 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, 14713 + ... + 15010.

It is an arithmetic number, because the mean of its divisors is an integer number (1114650).

Almost surely, 2^4428727 is an apocalyptic number.

4428727 is a deficient number, since it is larger than the sum of its proper divisors (29873).

4428727 is a wasteful number, since it uses less digits than its factorization.

4428727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29872.

The product of its digits is 25088, while the sum is 34.

The square root of 4428727 is about 2104.4540859805. The cubic root of 4428727 is about 164.2200966143.

The spelling of 4428727 in words is "four million, four hundred twenty-eight thousand, seven hundred twenty-seven".