4778746 has 8 divisors (see below), whose sum is σ = 8192160. Its totient is φ = 2048028.

The previous prime is 4778731. The next prime is 4778759. The reversal of 4778746 is 6478774.

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

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 3 ways as a sum of consecutive naturals, for example, 170656 + ... + 170683.

It is an arithmetic number, because the mean of its divisors is an integer number (1024020).

Almost surely, 2^4778746 is an apocalyptic number.

4778746 is a deficient number, since it is larger than the sum of its proper divisors (3413414).

4778746 is a wasteful number, since it uses less digits than its factorization.

4778746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341348.

The product of its digits is 263424, while the sum is 43.

The square root of 4778746 is about 2186.0343089714. The cubic root of 4778746 is about 168.4371880340.

The spelling of 4778746 in words is "four million, seven hundred seventy-eight thousand, seven hundred forty-six".