4978838 has 16 divisors (see below), whose sum is σ = 7665840. Its totient is φ = 2424576.

The previous prime is 4978829. The next prime is 4978847. The reversal of 4978838 is 8388794.

It is an interprime number because it is at equal distance from previous prime (4978829) and next prime (4978847).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4978792 and 4978801.

It is a congruent number.

It is an unprimeable number.

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, 14606 + ... + 14942.

It is an arithmetic number, because the mean of its divisors is an integer number (479115).

Almost surely, 2^4978838 is an apocalyptic number.

4978838 is a deficient number, since it is larger than the sum of its proper divisors (2687002).

4978838 is a wasteful number, since it uses less digits than its factorization.

4978838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its digits is 387072, while the sum is 47.

The square root of 4978838 is about 2231.3309929278. The cubic root of 4978838 is about 170.7560101124.

It can be divided in two parts, 49 and 78838, that added together give a palindrome (78887).

The spelling of 4978838 in words is "four million, nine hundred seventy-eight thousand, eight hundred thirty-eight".