4999309 has 16 divisors (see below), whose sum is σ = 6196608. Its totient is φ = 3935232.

The previous prime is 4999307. The next prime is 4999321. The reversal of 4999309 is 9039994.

It is not a de Polignac number, because 4999309 - 2¹ = 4999307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4999301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4629 + ... + 5605.

It is an arithmetic number, because the mean of its divisors is an integer number (387288).

Almost surely, 2^4999309 is an apocalyptic number.

It is an amenable number.

4999309 is a deficient number, since it is larger than the sum of its proper divisors (1197299).

4999309 is a wasteful number, since it uses less digits than its factorization.

4999309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 4999309 is about 2235.9134598638. The cubic root of 4999309 is about 170.9897170156.

The spelling of 4999309 in words is "four million, nine hundred ninety-nine thousand, three hundred nine".