4738639 has 4 divisors (see below), whose sum is σ = 4756024. Its totient is φ = 4721256.

The previous prime is 4738609. The next prime is 4738651. The reversal of 4738639 is 9368374.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4738639 - 2⁵ = 4738607 is a prime.

It is a super-3 number, since 3×4738639³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4738609) 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 3 ways as a sum of consecutive naturals, for example, 8277 + ... + 8830.

It is an arithmetic number, because the mean of its divisors is an integer number (1189006).

Almost surely, 2^4738639 is an apocalyptic number.

4738639 is a deficient number, since it is larger than the sum of its proper divisors (17385).

4738639 is a wasteful number, since it uses less digits than its factorization.

4738639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17384.

The product of its digits is 108864, while the sum is 40.

The square root of 4738639 is about 2176.8415192659. The cubic root of 4738639 is about 167.9646443929.

The spelling of 4738639 in words is "four million, seven hundred thirty-eight thousand, six hundred thirty-nine".