4428287 has 4 divisors (see below), whose sum is σ = 4536336. Its totient is φ = 4320240.

The previous prime is 4428283. The next prime is 4428289. The reversal of 4428287 is 7828244.

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 4428287 - 2² = 4428283 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53963 + ... + 54044.

It is an arithmetic number, because the mean of its divisors is an integer number (1134084).

Almost surely, 2^4428287 is an apocalyptic number.

4428287 is a deficient number, since it is larger than the sum of its proper divisors (108049).

4428287 is a wasteful number, since it uses less digits than its factorization.

4428287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108048.

The product of its digits is 28672, while the sum is 35.

The square root of 4428287 is about 2104.3495432081. The cubic root of 4428287 is about 164.2146579382.

The spelling of 4428287 in words is "four million, four hundred twenty-eight thousand, two hundred eighty-seven".