6220664 has 8 divisors (see below), whose sum is σ = 11663760. Its totient is φ = 3110328.

The previous prime is 6220661. The next prime is 6220673. The reversal of 6220664 is 4660226.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388784 + ... + 388799.

It is an arithmetic number, because the mean of its divisors is an integer number (1457970).

Almost surely, 2^6220664 is an apocalyptic number.

It is an amenable number.

6220664 is a deficient number, since it is larger than the sum of its proper divisors (5443096).

6220664 is a wasteful number, since it uses less digits than its factorization.

6220664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777589 (or 777585 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6220664 is about 2494.1258989875. The cubic root of 6220664 is about 183.9129235116.

The spelling of 6220664 in words is "six million, two hundred twenty thousand, six hundred sixty-four".