6660712 has 16 divisors (see below), whose sum is σ = 12694500. Its totient is φ = 3275520.

The previous prime is 6660707. The next prime is 6660721. The reversal of 6660712 is 2170666.

It can be written as a sum of positive squares in 2 ways, for example, as 4955076 + 1705636 = 2226^2 + 1306^2 .

It is a nialpdrome in base 14.

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, 6337 + ... + 7312.

Almost surely, 2^6660712 is an apocalyptic number.

It is an amenable number.

6660712 is a deficient number, since it is larger than the sum of its proper divisors (6033788).

6660712 is a wasteful number, since it uses less digits than its factorization.

6660712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13716 (or 13712 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 6660712 is about 2580.8355236241. The cubic root of 6660712 is about 188.1511535255.

The spelling of 6660712 in words is "six million, six hundred sixty thousand, seven hundred twelve".