4728387 has 16 divisors (see below), whose sum is σ = 6497280. Its totient is φ = 3057600.

The previous prime is 4728379. The next prime is 4728401. The reversal of 4728387 is 7838274.

It is not a de Polignac number, because 4728387 - 2³ = 4728379 is a prime.

It is a d-powerful number, because it can be written as 4³ + 7² + 2²² + 8² + 3¹² + 8² + 7⁴ .

It is not an unprimeable number, because it can be changed into a prime (4728287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16687 + ... + 16967.

It is an arithmetic number, because the mean of its divisors is an integer number (406080).

Almost surely, 2^4728387 is an apocalyptic number.

4728387 is a deficient number, since it is larger than the sum of its proper divisors (1768893).

4728387 is a wasteful number, since it uses less digits than its factorization.

4728387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its digits is 75264, while the sum is 39.

The square root of 4728387 is about 2174.4854563781. The cubic root of 4728387 is about 167.8434269678.

It can be divided in two parts, 4728 and 387, that added together give a palindrome (5115).

The spelling of 4728387 in words is "four million, seven hundred twenty-eight thousand, three hundred eighty-seven".