6622743 has 4 divisors (see below), whose sum is σ = 8830328. Its totient is φ = 4415160.

The previous prime is 6622729. The next prime is 6622753. The reversal of 6622743 is 3472266.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6622743 - 2⁵ = 6622711 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6622743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622703) 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, 1103788 + ... + 1103793.

It is an arithmetic number, because the mean of its divisors is an integer number (2207582).

Almost surely, 2^6622743 is an apocalyptic number.

6622743 is a deficient number, since it is larger than the sum of its proper divisors (2207585).

6622743 is a wasteful number, since it uses less digits than its factorization.

6622743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207584.

The product of its digits is 12096, while the sum is 30.

The square root of 6622743 is about 2573.4690594604. The cubic root of 6622743 is about 187.7929571453.

The spelling of 6622743 in words is "six million, six hundred twenty-two thousand, seven hundred forty-three".