4639928 has 32 divisors (see below), whose sum is σ = 9192960. Its totient is φ = 2191200.

The previous prime is 4639927. The next prime is 4639931. The reversal of 4639928 is 8299364.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4639927) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27701 + ... + 27867.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^4639928 is an apocalyptic number.

It is an amenable number.

4639928 is a deficient number, since it is larger than the sum of its proper divisors (4553032).

4639928 is a wasteful number, since it uses less digits than its factorization.

4639928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 343 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 4639928 is about 2154.0492102085. The cubic root of 4639928 is about 166.7901555914.

The spelling of 4639928 in words is "four million, six hundred thirty-nine thousand, nine hundred twenty-eight".