4909785 has 8 divisors (see below), whose sum is σ = 7855680. Its totient is φ = 2618544.

The previous prime is 4909781. The next prime is 4909823. The reversal of 4909785 is 5879094.

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

It is not a de Polignac number, because 4909785 - 2² = 4909781 is a prime.

It is a Curzon number.

4909785 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4909781) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 163645 + ... + 163674.

It is an arithmetic number, because the mean of its divisors is an integer number (981960).

Almost surely, 2^4909785 is an apocalyptic number.

It is an amenable number.

4909785 is a deficient number, since it is larger than the sum of its proper divisors (2945895).

4909785 is a wasteful number, since it uses less digits than its factorization.

4909785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327327.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 4909785 is about 2215.8034660141. The cubic root of 4909785 is about 169.9629100169.

The spelling of 4909785 in words is "four million, nine hundred nine thousand, seven hundred eighty-five".