2660006 has 4 divisors (see below), whose sum is σ = 3990012. Its totient is φ = 1330002.

The previous prime is 2660003. The next prime is 2660011. The reversal of 2660006 is 6000662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6000662 = 2 ⋅3000331.

It is a self number, because there is not a number n which added to its sum of digits gives 2660006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665000 + ... + 665003.

It is an arithmetic number, because the mean of its divisors is an integer number (997503).

2^2660006 is an apocalyptic number.

2660006 is a deficient number, since it is larger than the sum of its proper divisors (1330006).

2660006 is a wasteful number, since it uses less digits than its factorization.

2660006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330005.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2660006 is about 1630.9524824470. The cubic root of 2660006 is about 138.5567024014.

Adding to 2660006 its reverse (6000662), we get a palindrome (8660668).

The spelling of 2660006 in words is "two million, six hundred sixty thousand, six".