4778709 has 16 divisors (see below), whose sum is σ = 7224000. Its totient is φ = 2785536.

The previous prime is 4778701. The next prime is 4778713. The reversal of 4778709 is 9078774.

It is not a de Polignac number, because 4778709 - 2³ = 4778701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 3965.

It is an arithmetic number, because the mean of its divisors is an integer number (451500).

Almost surely, 2^4778709 is an apocalyptic number.

It is an amenable number.

4778709 is a deficient number, since it is larger than the sum of its proper divisors (2445291).

4778709 is a wasteful number, since it uses less digits than its factorization.

4778709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6484.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 4778709 is about 2186.0258461418. The cubic root of 4778709 is about 168.4367533180.

The spelling of 4778709 in words is "four million, seven hundred seventy-eight thousand, seven hundred nine".