4809999 has 4 divisors (see below), whose sum is σ = 6413336. Its totient is φ = 3206664.

The previous prime is 4809977. The next prime is 4810019. The reversal of 4809999 is 9999084.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4809999 - 2¹¹ = 4807951 is a prime.

It is a super-3 number, since 3×4809999³ (a number of 21 digits) contains 333 as substring.

It is a D-number.

It is a Duffinian number.

4809999 is a modest number, since divided by 9999 gives 480 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4809949) 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, 801664 + ... + 801669.

It is an arithmetic number, because the mean of its divisors is an integer number (1603334).

Almost surely, 2^4809999 is an apocalyptic number.

4809999 is a deficient number, since it is larger than the sum of its proper divisors (1603337).

4809999 is a wasteful number, since it uses less digits than its factorization.

4809999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603336.

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 4809999 is about 2193.1709919657. The cubic root of 4809999 is about 168.8035835324.

The spelling of 4809999 in words is "four million, eight hundred nine thousand, nine hundred ninety-nine".