4978836 has 72 divisors (see below), whose sum is σ = 13759200. Its totient is φ = 1512000.

The previous prime is 4978829. The next prime is 4978847. The reversal of 4978836 is 6388794.

It is a happy number.

4978836 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4978791 and 4978800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19711 + ... + 19961.

It is an arithmetic number, because the mean of its divisors is an integer number (191100).

Almost surely, 2^4978836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4978836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6879600).

4978836 is an abundant number, since it is smaller than the sum of its proper divisors (8780364).

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

4978836 is a wasteful number, since it uses less digits than its factorization.

4978836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 304 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 4978836 is about 2231.3305447647. The cubic root of 4978836 is about 170.7559872481.

The spelling of 4978836 in words is "four million, nine hundred seventy-eight thousand, eight hundred thirty-six".