6622943 has 4 divisors (see below), whose sum is σ = 6656760. Its totient is φ = 6589128.

The previous prime is 6622939. The next prime is 6622961. The reversal of 6622943 is 3492266.

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

It is a cyclic number.

It is not a de Polignac number, because 6622943 - 2² = 6622939 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 (6621943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16613 + ... + 17006.

It is an arithmetic number, because the mean of its divisors is an integer number (1664190).

Almost surely, 2^6622943 is an apocalyptic number.

6622943 is a deficient number, since it is larger than the sum of its proper divisors (33817).

6622943 is a wasteful number, since it uses less digits than its factorization.

6622943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33816.

The product of its digits is 15552, while the sum is 32.

The square root of 6622943 is about 2573.5079172212. The cubic root of 6622943 is about 187.7948475107.

The spelling of 6622943 in words is "six million, six hundred twenty-two thousand, nine hundred forty-three".