6622861 has 4 divisors (see below), whose sum is σ = 7568992. Its totient is φ = 5676732.

The previous prime is 6622859. The next prime is 6622867. The reversal of 6622861 is 1682266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6622861 - 2¹ = 6622859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622867) 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 in 3 ways as a sum of consecutive naturals, for example, 473055 + ... + 473068.

It is an arithmetic number, because the mean of its divisors is an integer number (1892248).

Almost surely, 2^6622861 is an apocalyptic number.

It is an amenable number.

6622861 is a deficient number, since it is larger than the sum of its proper divisors (946131).

6622861 is an equidigital number, since it uses as much as digits as its factorization.

6622861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946130.

The product of its digits is 6912, while the sum is 31.

The square root of 6622861 is about 2573.4919856102. The cubic root of 6622861 is about 187.7940724655.

The spelling of 6622861 in words is "six million, six hundred twenty-two thousand, eight hundred sixty-one".