4999849 has 2 divisors, whose sum is σ = 4999850. Its totient is φ = 4999848.

The previous prime is 4999823. The next prime is 4999867. The reversal of 4999849 is 9489994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4995225 + 4624 = 2235^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 4999849 - 2¹¹ = 4997801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4999796 and 4999805.

It is not a weakly prime, because it can be changed into another prime (4999879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499924 + 2499925.

It is an arithmetic number, because the mean of its divisors is an integer number (2499925).

Almost surely, 2^4999849 is an apocalyptic number.

It is an amenable number.

4999849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999849 is an equidigital number, since it uses as much as digits as its factorization.

4999849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 52.

The square root of 4999849 is about 2236.0342126184. The cubic root of 4999849 is about 170.9958732746.

The spelling of 4999849 in words is "four million, nine hundred ninety-nine thousand, eight hundred forty-nine".