4778625 has 16 divisors (see below), whose sum is σ = 7952256. Its totient is φ = 2548400.

The previous prime is 4778611. The next prime is 4778659. The reversal of 4778625 is 5268774.

It is not a de Polignac number, because 4778625 - 2⁵ = 4778593 is a prime.

4778625 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5997 + ... + 6746.

It is an arithmetic number, because the mean of its divisors is an integer number (497016).

Almost surely, 2^4778625 is an apocalyptic number.

It is an amenable number.

4778625 is a deficient number, since it is larger than the sum of its proper divisors (3173631).

4778625 is a wasteful number, since it uses less digits than its factorization.

4778625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761 (or 12751 counting only the distinct ones).

The product of its digits is 94080, while the sum is 39.

The square root of 4778625 is about 2186.0066331098. The cubic root of 4778625 is about 168.4357663869.

The spelling of 4778625 in words is "four million, seven hundred seventy-eight thousand, six hundred twenty-five".