6660930 has 32 divisors (see below), whose sum is σ = 16070400. Its totient is φ = 1766912.

The previous prime is 6660919. The next prime is 6660931. The reversal of 6660930 is 390666.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (6660931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6706 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (502200).

Almost surely, 2^6660930 is an apocalyptic number.

6660930 is an abundant number, since it is smaller than the sum of its proper divisors (9409470).

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

6660930 is a wasteful number, since it uses less digits than its factorization.

6660930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 6660930 is about 2580.8777576631. The cubic root of 6660930 is about 188.1532061842.

The spelling of 6660930 in words is "six million, six hundred sixty thousand, nine hundred thirty".