6122621 has 2 divisors, whose sum is σ = 6122622. Its totient is φ = 6122620.

The previous prime is 6122609. The next prime is 6122651. The reversal of 6122621 is 1262216.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4708900 + 1413721 = 2170^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 6122621 - 2²² = 1928317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6122593 and 6122602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6122651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3061310 + 3061311.

It is an arithmetic number, because the mean of its divisors is an integer number (3061311).

Almost surely, 2^6122621 is an apocalyptic number.

It is an amenable number.

6122621 is a deficient number, since it is larger than the sum of its proper divisors (1).

6122621 is an equidigital number, since it uses as much as digits as its factorization.

6122621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 6122621 is about 2474.3930568929. The cubic root of 6122621 is about 182.9415940301.

Adding to 6122621 its reverse (1262216), we get a palindrome (7384837).

The spelling of 6122621 in words is "six million, one hundred twenty-two thousand, six hundred twenty-one".