4999851 has 12 divisors (see below), whose sum is σ = 7244328. Its totient is φ = 3322944.

The previous prime is 4999849. The next prime is 4999867. The reversal of 4999851 is 1589994.

It is not a de Polignac number, because 4999851 - 2¹ = 4999849 is a prime.

4999851 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4999797 and 4999806.

It is not an unprimeable number, because it can be changed into a prime (4999801) 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 11 ways as a sum of consecutive naturals, for example, 3256 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (603694).

Almost surely, 2^4999851 is an apocalyptic number.

4999851 is a deficient number, since it is larger than the sum of its proper divisors (2244477).

4999851 is a wasteful number, since it uses less digits than its factorization.

4999851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1719 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 4999851 is about 2236.0346598387. The cubic root of 4999851 is about 170.9958960747.

The spelling of 4999851 in words is "four million, nine hundred ninety-nine thousand, eight hundred fifty-one".