5209807 has 4 divisors (see below), whose sum is σ = 5215816. Its totient is φ = 5203800.

The previous prime is 5209783. The next prime is 5209817. The reversal of 5209807 is 7089025.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5209807 - 2⁷ = 5209679 is a prime.

It is the 2283-rd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209817) by changing a digit.

It is a nontrivial repunit in base 2282.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428 + ... + 3529.

It is an arithmetic number, because the mean of its divisors is an integer number (1303954).

Almost surely, 2^5209807 is an apocalyptic number.

5209807 is a deficient number, since it is larger than the sum of its proper divisors (6009).

5209807 is a wasteful number, since it uses less digits than its factorization.

5209807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 5209807 is about 2282.5001642935. The cubic root of 5209807 is about 173.3566655804.

The spelling of 5209807 in words is "five million, two hundred nine thousand, eight hundred seven".