4028775 has 12 divisors (see below), whose sum is σ = 6661032. Its totient is φ = 2148640.

The previous prime is 4028771. The next prime is 4028807. The reversal of 4028775 is 5778204.

It is not a de Polignac number, because 4028775 - 2² = 4028771 is a prime.

4028775 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26784 + ... + 26933.

It is an arithmetic number, because the mean of its divisors is an integer number (555086).

Almost surely, 2^4028775 is an apocalyptic number.

4028775 is a deficient number, since it is larger than the sum of its proper divisors (2632257).

4028775 is a wasteful number, since it uses less digits than its factorization.

4028775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53730 (or 53725 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 4028775 is about 2007.1808588167. The cubic root of 4028775 is about 159.1198416149.

The spelling of 4028775 in words is "four million, twenty-eight thousand, seven hundred seventy-five".