6221648 has 20 divisors (see below), whose sum is σ = 12112320. Its totient is φ = 3095904.

The previous prime is 6221647. The next prime is 6221651. The reversal of 6221648 is 8461226.

It is a super-3 number, since 3×6221648³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6221648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221647) 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, 3011 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (605616).

Almost surely, 2^6221648 is an apocalyptic number.

It is an amenable number.

6221648 is a deficient number, since it is larger than the sum of its proper divisors (5890672).

6221648 is a wasteful number, since it uses less digits than its factorization.

6221648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874 (or 1868 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 6221648 is about 2494.3231546855. The cubic root of 6221648 is about 183.9226202672.

The spelling of 6221648 in words is "six million, two hundred twenty-one thousand, six hundred forty-eight".