5009805 has 24 divisors (see below), whose sum is σ = 8749728. Its totient is φ = 2651616.

The previous prime is 5009803. The next prime is 5009821. The reversal of 5009805 is 5089005.

It is not a de Polignac number, because 5009805 - 2¹ = 5009803 is a prime.

It is a super-2 number, since 2×5009805² = 50196292276050, which contains 22 as substring.

5009805 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5009803) 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 23 ways as a sum of consecutive naturals, for example, 6994 + ... + 7676.

It is an arithmetic number, because the mean of its divisors is an integer number (364572).

Almost surely, 2^5009805 is an apocalyptic number.

It is an amenable number.

5009805 is a deficient number, since it is larger than the sum of its proper divisors (3739923).

5009805 is a wasteful number, since it uses less digits than its factorization.

5009805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 5009805 is about 2238.2593683485. The cubic root of 5009805 is about 171.1092971110.

Subtracting from 5009805 its product of nonzero digits (1800), we obtain a palindrome (5008005).

The spelling of 5009805 in words is "five million, nine thousand, eight hundred five".