5199823 has 4 divisors (see below), whose sum is σ = 5285128. Its totient is φ = 5114520.

The previous prime is 5199811. The next prime is 5199829. The reversal of 5199823 is 3289915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3289915 = 5 ⋅657983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5199823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5199829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42561 + ... + 42682.

It is an arithmetic number, because the mean of its divisors is an integer number (1321282).

Almost surely, 2^5199823 is an apocalyptic number.

5199823 is a deficient number, since it is larger than the sum of its proper divisors (85305).

5199823 is an equidigital number, since it uses as much as digits as its factorization.

5199823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85304.

The product of its digits is 19440, while the sum is 37.

The square root of 5199823 is about 2280.3120400507. The cubic root of 5199823 is about 173.2458553494.

The spelling of 5199823 in words is "five million, one hundred ninety-nine thousand, eight hundred twenty-three".