4909851 has 12 divisors (see below), whose sum is σ = 7119112. Its totient is φ = 3260736.

The previous prime is 4909843. The next prime is 4909859. The reversal of 4909851 is 1589094.

It is an interprime number because it is at equal distance from previous prime (4909843) and next prime (4909859).

It is not a de Polignac number, because 4909851 - 2³ = 4909843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4909859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1875 + ... + 3651.

Almost surely, 2^4909851 is an apocalyptic number.

4909851 is a deficient number, since it is larger than the sum of its proper divisors (2209261).

4909851 is a wasteful number, since it uses less digits than its factorization.

4909851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 2087 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4909851 is about 2215.8183589816. The cubic root of 4909851 is about 169.9636715914.

The spelling of 4909851 in words is "four million, nine hundred nine thousand, eight hundred fifty-one".