6620446 has 16 divisors (see below), whose sum is σ = 12017376. Its totient is φ = 2670336.

The previous prime is 6620441. The next prime is 6620461. The reversal of 6620446 is 6440266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13671 + ... + 14146.

It is an arithmetic number, because the mean of its divisors is an integer number (751086).

Almost surely, 2^6620446 is an apocalyptic number.

6620446 is a deficient number, since it is larger than the sum of its proper divisors (5396930).

6620446 is a wasteful number, since it uses less digits than its factorization.

6620446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27843.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6620446 is about 2573.0227360053. The cubic root of 6620446 is about 187.7712435692.

The spelling of 6620446 in words is "six million, six hundred twenty thousand, four hundred forty-six".