5099821 has 8 divisors (see below), whose sum is σ = 5266040. Its totient is φ = 4935168.

The previous prime is 5099807. The next prime is 5099827. The reversal of 5099821 is 1289905.

5099821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2340900 + 2758921 = 1530^2 + 1661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5099821 - 2⁹ = 5099309 is a prime.

It is a Duffinian number.

5099821 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5099827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12265 + ... + 12673.

It is an arithmetic number, because the mean of its divisors is an integer number (658255).

Almost surely, 2^5099821 is an apocalyptic number.

It is an amenable number.

5099821 is a deficient number, since it is larger than the sum of its proper divisors (166219).

5099821 is a wasteful number, since it uses less digits than its factorization.

5099821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 5099821 is about 2258.2783265134. The cubic root of 5099821 is about 172.1280482398.

The spelling of 5099821 in words is "five million, ninety-nine thousand, eight hundred twenty-one".