6663380 has 24 divisors (see below), whose sum is σ = 14068320. Its totient is φ = 2651040.

The previous prime is 6663347. The next prime is 6663383. The reversal of 6663380 is 833666.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663383) 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, 3431 + ... + 5009.

It is an arithmetic number, because the mean of its divisors is an integer number (586180).

Almost surely, 2^6663380 is an apocalyptic number.

It is an amenable number.

6663380 is an abundant number, since it is smaller than the sum of its proper divisors (7404940).

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

6663380 is a wasteful number, since it uses less digits than its factorization.

6663380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6663380 is about 2581.3523587453. The cubic root of 6663380 is about 188.1762719747.

The spelling of 6663380 in words is "six million, six hundred sixty-three thousand, three hundred eighty".