4028671 has 4 divisors (see below), whose sum is σ = 4137592. Its totient is φ = 3919752.

The previous prime is 4028663. The next prime is 4028681. The reversal of 4028671 is 1768204.

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 4028671 - 2³ = 4028663 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 (4028621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54405 + ... + 54478.

It is an arithmetic number, because the mean of its divisors is an integer number (1034398).

Almost surely, 2^4028671 is an apocalyptic number.

4028671 is a deficient number, since it is larger than the sum of its proper divisors (108921).

4028671 is a wasteful number, since it uses less digits than its factorization.

4028671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108920.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 4028671 is about 2007.1549516667. The cubic root of 4028671 is about 159.1184724141.

The spelling of 4028671 in words is "four million, twenty-eight thousand, six hundred seventy-one".