4639028 has 18 divisors (see below), whose sum is σ = 8626086. Its totient is φ = 2182528.

The previous prime is 4639003. The next prime is 4639049. The reversal of 4639028 is 8209364.

It can be written as a sum of positive squares in 3 ways, for example, as 2729104 + 1909924 = 1652^2 + 1382^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4638985 and 4639003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851 + ... + 3162.

It is an arithmetic number, because the mean of its divisors is an integer number (479227).

Almost surely, 2^4639028 is an apocalyptic number.

It is an amenable number.

4639028 is a deficient number, since it is larger than the sum of its proper divisors (3987058).

4639028 is a wasteful number, since it uses less digits than its factorization.

4639028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051 (or 4032 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 4639028 is about 2153.8402912008. The cubic root of 4639028 is about 166.7793708805.

The spelling of 4639028 in words is "four million, six hundred thirty-nine thousand, twenty-eight".