5219806 has 4 divisors (see below), whose sum is σ = 7829712. Its totient is φ = 2609902.

The previous prime is 5219803. The next prime is 5219807. The reversal of 5219806 is 6089125.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5219801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304950 + ... + 1304953.

It is an arithmetic number, because the mean of its divisors is an integer number (1957428).

Almost surely, 2^5219806 is an apocalyptic number.

5219806 is a deficient number, since it is larger than the sum of its proper divisors (2609906).

5219806 is a wasteful number, since it uses less digits than its factorization.

5219806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609905.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5219806 is about 2284.6894756181. The cubic root of 5219806 is about 173.4675004944.

The spelling of 5219806 in words is "five million, two hundred nineteen thousand, eight hundred six".