4639628 has 12 divisors (see below), whose sum is σ = 9279312. Its totient is φ = 1988400.

The previous prime is 4639597. The next prime is 4639631. The reversal of 4639628 is 8269364.

4639628 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

4639628 is an admirable number.

It is a super-2 number, since 2×4639628² = 43052295956768, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 6⁴ + 3⁵ + 9 + 6⁷ + 2¹⁷ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 4639591 and 4639600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82823 + ... + 82878.

It is an arithmetic number, because the mean of its divisors is an integer number (773276).

Almost surely, 2^4639628 is an apocalyptic number.

It is an amenable number.

4639628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4639628 is a wasteful number, since it uses less digits than its factorization.

4639628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165712 (or 165710 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 4639628 is about 2153.9795727908. The cubic root of 4639628 is about 166.7865608427.

The spelling of 4639628 in words is "four million, six hundred thirty-nine thousand, six hundred twenty-eight".