4779638 has 8 divisors (see below), whose sum is σ = 7256088. Its totient is φ = 2360944.

The previous prime is 4779631. The next prime is 4779661. The reversal of 4779638 is 8369774.

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

It is a super-2 number, since 2×4779638² = 45689878822088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4779631) 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 3 ways as a sum of consecutive naturals, for example, 14231 + ... + 14562.

It is an arithmetic number, because the mean of its divisors is an integer number (907011).

Almost surely, 2^4779638 is an apocalyptic number.

4779638 is a deficient number, since it is larger than the sum of its proper divisors (2476450).

4779638 is a wasteful number, since it uses less digits than its factorization.

4779638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28878.

The product of its digits is 254016, while the sum is 44.

The square root of 4779638 is about 2186.2383218670. The cubic root of 4779638 is about 168.4476675353.

The spelling of 4779638 in words is "four million, seven hundred seventy-nine thousand, six hundred thirty-eight".