6660983 has 8 divisors (see below), whose sum is σ = 7798560. Its totient is φ = 5569920.

The previous prime is 6660977. The next prime is 6661013. The reversal of 6660983 is 3890666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6660983 - 2⁴ = 6660967 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660943) 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, 11318 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (974820).

Almost surely, 2^6660983 is an apocalyptic number.

6660983 is a deficient number, since it is larger than the sum of its proper divisors (1137577).

6660983 is a wasteful number, since it uses less digits than its factorization.

6660983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23257.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 6660983 is about 2580.8880254672. Note that the first 3 decimals coincide. The cubic root of 6660983 is about 188.1537052183.

The spelling of 6660983 in words is "six million, six hundred sixty thousand, nine hundred eighty-three".