1206866 has 16 divisors (see below), whose sum is σ = 1904256. Its totient is φ = 572976.

The previous prime is 1206841. The next prime is 1206869. The reversal of 1206866 is 6686021.

It is not an unprimeable number, because it can be changed into a prime (1206869) 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, 3305 + ... + 3651.

It is an arithmetic number, because the mean of its divisors is an integer number (119016).

2^1206866 is an apocalyptic number.

1206866 is a deficient number, since it is larger than the sum of its proper divisors (697390).

1206866 is a wasteful number, since it uses less digits than its factorization.

1206866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1206866 is about 1098.5745309263. The cubic root of 1206866 is about 106.4681442044.

The spelling of 1206866 in words is "one million, two hundred six thousand, eight hundred sixty-six".