6243656 has 8 divisors (see below), whose sum is σ = 11706870. Its totient is φ = 3121824.

The previous prime is 6243631. The next prime is 6243659. The reversal of 6243656 is 6563426.

It can be written as a sum of positive squares in only one way, i.e., 4884100 + 1359556 = 2210^2 + 1166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 6³ + 2⁹ + 4¹¹ + 3⁷ + 6⁶ + 5⁹ + 6⁶ .

It is not an unprimeable number, because it can be changed into a prime (6243659) 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, 390221 + ... + 390236.

Almost surely, 2^6243656 is an apocalyptic number.

It is an amenable number.

6243656 is a deficient number, since it is larger than the sum of its proper divisors (5463214).

6243656 is a wasteful number, since it uses less digits than its factorization.

6243656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780463 (or 780459 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 6243656 is about 2498.7308778658. The cubic root of 6243656 is about 184.1392298441.

The spelling of 6243656 in words is "six million, two hundred forty-three thousand, six hundred fifty-six".