4028447 has 4 divisors (see below), whose sum is σ = 4079520. Its totient is φ = 3977376.

The previous prime is 4028441. The next prime is 4028471. The reversal of 4028447 is 7448204.

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 4028447 - 2⁸ = 4028191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028441) 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, 25418 + ... + 25575.

It is an arithmetic number, because the mean of its divisors is an integer number (1019880).

Almost surely, 2^4028447 is an apocalyptic number.

4028447 is a deficient number, since it is larger than the sum of its proper divisors (51073).

4028447 is an equidigital number, since it uses as much as digits as its factorization.

4028447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51072.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 4028447 is about 2007.0991505155. The cubic root of 4028447 is about 159.1155232862.

The spelling of 4028447 in words is "four million, twenty-eight thousand, four hundred forty-seven".