6622541 has 2 divisors, whose sum is σ = 6622542. Its totient is φ = 6622540.

The previous prime is 6622531. The next prime is 6622547. The reversal of 6622541 is 1452266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5900041 + 722500 = 2429^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 6622541 - 2¹⁴ = 6606157 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6622541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6622547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311270 + 3311271.

It is an arithmetic number, because the mean of its divisors is an integer number (3311271).

Almost surely, 2^6622541 is an apocalyptic number.

It is an amenable number.

6622541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6622541 is an equidigital number, since it uses as much as digits as its factorization.

6622541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 6622541 is about 2573.4298125265. The cubic root of 6622541 is about 187.7910478376.

It can be divided in two parts, 66225 and 41, that added together give a palindrome (66266).

The spelling of 6622541 in words is "six million, six hundred twenty-two thousand, five hundred forty-one".