4851009 has 12 divisors (see below), whose sum is σ = 7266896. Its totient is φ = 3233844.

The previous prime is 4850987. The next prime is 4851013. The reversal of 4851009 is 9001584.

It is not a de Polignac number, because 4851009 - 2⁸ = 4850753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4851029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9739 + ... + 10224.

Almost surely, 2^4851009 is an apocalyptic number.

It is an amenable number.

4851009 is a deficient number, since it is larger than the sum of its proper divisors (2415887).

4851009 is an equidigital number, since it uses as much as digits as its factorization.

4851009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19978 (or 19966 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 4851009 is about 2202.5006242905. The cubic root of 4851009 is about 169.2819657192.

The spelling of 4851009 in words is "four million, eight hundred fifty-one thousand, nine".