6223813 has 2 divisors, whose sum is σ = 6223814. Its totient is φ = 6223812.

The previous prime is 6223783. The next prime is 6223817. The reversal of 6223813 is 3183226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5841889 + 381924 = 2417^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 6223813 - 2⁵ = 6223781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6223817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111906 + 3111907.

It is an arithmetic number, because the mean of its divisors is an integer number (3111907).

Almost surely, 2^6223813 is an apocalyptic number.

It is an amenable number.

6223813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6223813 is an equidigital number, since it uses as much as digits as its factorization.

6223813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 6223813 is about 2494.7571024050. The cubic root of 6223813 is about 183.9439515015.

The spelling of 6223813 in words is "six million, two hundred twenty-three thousand, eight hundred thirteen".