4780909 has 8 divisors (see below), whose sum is σ = 5481728. Its totient is φ = 4084560.

The previous prime is 4780903. The next prime is 4780931. The reversal of 4780909 is 9090874.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4780909 - 2⁵ = 4780877 is a prime.

4780909 is a modest number, since divided by 909 gives 478 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780903) 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, 1639 + ... + 3499.

It is an arithmetic number, because the mean of its divisors is an integer number (685216).

Almost surely, 2^4780909 is an apocalyptic number.

It is an amenable number.

4780909 is a deficient number, since it is larger than the sum of its proper divisors (700819).

4780909 is a wasteful number, since it uses less digits than its factorization.

4780909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 4780909 is about 2186.5289844866. The cubic root of 4780909 is about 168.4625973975.

The spelling of 4780909 in words is "four million, seven hundred eighty thousand, nine hundred nine".