6224936621 has 2 divisors, whose sum is σ = 6224936622. Its totient is φ = 6224936620.

The previous prime is 6224936609. The next prime is 6224936633. The reversal of 6224936621 is 1266394226.

6224936621 = 55789² + 55790².

It is a balanced prime because it is at equal distance from previous prime (6224936609) and next prime (6224936633).

It can be written as a sum of positive squares in only one way, i.e., 3112524100 + 3112412521 = 55790^2 + 55789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6224936621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6224936021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3112468310 + 3112468311.

It is an arithmetic number, because the mean of its divisors is an integer number (3112468311).

Almost surely, 2^6224936621 is an apocalyptic number.

6224936621 is the 55790-th centered square number.

It is an amenable number.

6224936621 is a deficient number, since it is larger than the sum of its proper divisors (1).

6224936621 is an equidigital number, since it uses as much as digits as its factorization.

6224936621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 6224936621 is about 78898.2675411824. The cubic root of 6224936621 is about 1839.5502032432.

The spelling of 6224936621 in words is "six billion, two hundred twenty-four million, nine hundred thirty-six thousand, six hundred twenty-one".