4789809 has 12 divisors (see below), whose sum is σ = 6987136. Its totient is φ = 3161592.

The previous prime is 4789793. The next prime is 4789823. The reversal of 4789809 is 9089874.

It is not a de Polignac number, because 4789809 - 2⁴ = 4789793 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 7 + 8 + 9⁴ + 8 + 0 + 9⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4789409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1657 + ... + 3510.

Almost surely, 2^4789809 is an apocalyptic number.

It is an amenable number.

4789809 is a deficient number, since it is larger than the sum of its proper divisors (2197327).

4789809 is a wasteful number, since it uses less digits than its factorization.

4789809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4789809 is about 2188.5632273252. The cubic root of 4789809 is about 168.5670676086.

The spelling of 4789809 in words is "four million, seven hundred eighty-nine thousand, eight hundred nine".