4777778 has 8 divisors (see below), whose sum is σ = 7543920. Its totient is φ = 2263140.

The previous prime is 4777769. The next prime is 4777781. The reversal of 4777778 is 8777774.

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

It is a plaindrome in base 10.

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 3 ways as a sum of consecutive naturals, for example, 62828 + ... + 62903.

It is an arithmetic number, because the mean of its divisors is an integer number (942990).

Almost surely, 2^4777778 is an apocalyptic number.

4777778 is a deficient number, since it is larger than the sum of its proper divisors (2766142).

4777778 is a wasteful number, since it uses less digits than its factorization.

4777778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125752.

The product of its digits is 537824, while the sum is 47.

The square root of 4777778 is about 2185.8128922669. The cubic root of 4777778 is about 168.4258141849.

It can be divided in two parts, 4777 and 778, that added together give a palindrome (5555).

The spelling of 4777778 in words is "four million, seven hundred seventy-seven thousand, seven hundred seventy-eight".