4639806 has 24 divisors (see below), whose sum is σ = 10299744. Its totient is φ = 1508640.

The previous prime is 4639799. The next prime is 4639823. The reversal of 4639806 is 6089364.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2406 + ... + 3881.

It is an arithmetic number, because the mean of its divisors is an integer number (429156).

Almost surely, 2^4639806 is an apocalyptic number.

4639806 is an abundant number, since it is smaller than the sum of its proper divisors (5659938).

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

4639806 is a wasteful number, since it uses less digits than its factorization.

4639806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336 (or 6333 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 4639806 is about 2154.0208912636. The cubic root of 4639806 is about 166.7886937457.

It can be divided in two parts, 4639 and 806, that added together give a palindrome (5445).

The spelling of 4639806 in words is "four million, six hundred thirty-nine thousand, eight hundred six".