4778816 has 28 divisors (see below), whose sum is σ = 10838688. Its totient is φ = 2047872.

The previous prime is 4778803. The next prime is 4778827. The reversal of 4778816 is 6188774.

4778816 is nontrivially palindromic in base 6.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4886 + ... + 5781.

It is an arithmetic number, because the mean of its divisors is an integer number (387096).

Almost surely, 2^4778816 is an apocalyptic number.

It is an amenable number.

4778816 is an abundant number, since it is smaller than the sum of its proper divisors (6059872).

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

4778816 is a wasteful number, since it uses less digits than its factorization.

4778816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10686 (or 10676 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The square root of 4778816 is about 2186.0503196404. The cubic root of 4778816 is about 168.4380104636.

The spelling of 4778816 in words is "four million, seven hundred seventy-eight thousand, eight hundred sixteen".