4909849 has 12 divisors (see below), whose sum is σ = 5775924. Its totient is φ = 4161024.

The previous prime is 4909843. The next prime is 4909859. The reversal of 4909849 is 9489094.

It can be written as a sum of positive squares in 2 ways, for example, as 3732624 + 1177225 = 1932^2 + 1085^2 .

It is not a de Polignac number, because 4909849 - 2³ = 4909841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4237 + ... + 5269.

It is an arithmetic number, because the mean of its divisors is an integer number (481327).

Almost surely, 2^4909849 is an apocalyptic number.

4909849 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4909849 is a deficient number, since it is larger than the sum of its proper divisors (866075).

4909849 is a wasteful number, since it uses less digits than its factorization.

4909849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 4909849 is about 2215.8179076810. The cubic root of 4909849 is about 169.9636485135.

The spelling of 4909849 in words is "four million, nine hundred nine thousand, eight hundred forty-nine".