6320660 has 12 divisors (see below), whose sum is σ = 13273428. Its totient is φ = 2528256.

The previous prime is 6320641. The next prime is 6320687. The reversal of 6320660 is 660236.

It can be written as a sum of positive squares in 2 ways, for example, as 2979076 + 3341584 = 1726^2 + 1828^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157997 + ... + 158036.

It is an arithmetic number, because the mean of its divisors is an integer number (1106119).

Almost surely, 2^6320660 is an apocalyptic number.

It is an amenable number.

6320660 is an abundant number, since it is smaller than the sum of its proper divisors (6952768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6320660 is a wasteful number, since it uses less digits than its factorization.

6320660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316042 (or 316040 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 6320660 is about 2514.0922815203. The cubic root of 6320660 is about 184.8931450133.

Adding to 6320660 its reverse (660236), we get a palindrome (6980896).

The spelling of 6320660 in words is "six million, three hundred twenty thousand, six hundred sixty".