4936809 has 4 divisors (see below), whose sum is σ = 6582416. Its totient is φ = 3291204.

The previous prime is 4936793. The next prime is 4936819. The reversal of 4936809 is 9086394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4936809 - 2⁴ = 4936793 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4936819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822799 + ... + 822804.

It is an arithmetic number, because the mean of its divisors is an integer number (1645604).

Almost surely, 2^4936809 is an apocalyptic number.

It is an amenable number.

4936809 is a deficient number, since it is larger than the sum of its proper divisors (1645607).

4936809 is a wasteful number, since it uses less digits than its factorization.

4936809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645606.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 4936809 is about 2221.8931117405. The cubic root of 4936809 is about 170.2741711969.

The spelling of 4936809 in words is "four million, nine hundred thirty-six thousand, eight hundred nine".