4778886 has 16 divisors (see below), whose sum is σ = 10923264. Its totient is φ = 1365384.

The previous prime is 4778869. The next prime is 4778927. The reversal of 4778886 is 6888774.

4778886 = T₁₁₆₅ + T₁₁₆₆ + ... + T₁₁₇₁.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56850 + ... + 56933.

It is an arithmetic number, because the mean of its divisors is an integer number (682704).

Almost surely, 2^4778886 is an apocalyptic number.

4778886 is an abundant number, since it is smaller than the sum of its proper divisors (6144378).

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

4778886 is a wasteful number, since it uses less digits than its factorization.

4778886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113795.

The product of its digits is 602112, while the sum is 48.

The square root of 4778886 is about 2186.0663301922. The cubic root of 4778886 is about 168.4388328851.

It can be divided in two parts, 47788 and 86, that added together give a palindrome (47874).

The spelling of 4778886 in words is "four million, seven hundred seventy-eight thousand, eight hundred eighty-six".