4820639 has 8 divisors (see below), whose sum is σ = 5326560. Its totient is φ = 4339456.

The previous prime is 4820633. The next prime is 4820653. The reversal of 4820639 is 9360284.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4820639 - 2⁸ = 4820383 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 (4820633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5774 + ... + 6555.

It is an arithmetic number, because the mean of its divisors is an integer number (665820).

Almost surely, 2^4820639 is an apocalyptic number.

4820639 is a deficient number, since it is larger than the sum of its proper divisors (505921).

4820639 is a wasteful number, since it uses less digits than its factorization.

4820639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369.

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

The square root of 4820639 is about 2195.5953634493. The cubic root of 4820639 is about 168.9279596786.

The spelling of 4820639 in words is "four million, eight hundred twenty thousand, six hundred thirty-nine".