6620662 has 16 divisors (see below), whose sum is σ = 10171152. Its totient is φ = 3231360.

The previous prime is 6620629. The next prime is 6620681. The reversal of 6620662 is 2660266.

It is a self number, because there is not a number n which added to its sum of digits gives 6620662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19837 + ... + 20167.

It is an arithmetic number, because the mean of its divisors is an integer number (635697).

Almost surely, 2^6620662 is an apocalyptic number.

6620662 is a deficient number, since it is larger than the sum of its proper divisors (3550490).

6620662 is a wasteful number, since it uses less digits than its factorization.

6620662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6620662 is about 2573.0647096410. The cubic root of 6620662 is about 187.7732856344.

The spelling of 6620662 in words is "six million, six hundred twenty thousand, six hundred sixty-two".