4909807 has 4 divisors (see below), whose sum is σ = 5611216. Its totient is φ = 4208400.

The previous prime is 4909781. The next prime is 4909823. The reversal of 4909807 is 7089094.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7089094 = 2 ⋅3544547.

It is not a de Polignac number, because 4909807 - 2⁷ = 4909679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350694 + ... + 350707.

It is an arithmetic number, because the mean of its divisors is an integer number (1402804).

Almost surely, 2^4909807 is an apocalyptic number.

4909807 is a deficient number, since it is larger than the sum of its proper divisors (701409).

4909807 is an equidigital number, since it uses as much as digits as its factorization.

4909807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701408.

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

The square root of 4909807 is about 2215.8084303477. The cubic root of 4909807 is about 169.9631638758.

The spelling of 4909807 in words is "four million, nine hundred nine thousand, eight hundred seven".