1200684 has 12 divisors (see below), whose sum is σ = 2801624. Its totient is φ = 400224.

The previous prime is 1200679. The next prime is 1200691. The reversal of 1200684 is 4860021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1200684.

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, 50017 + ... + 50040.

2^1200684 is an apocalyptic number.

It is an amenable number.

1200684 is an abundant number, since it is smaller than the sum of its proper divisors (1600940).

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

1200684 is a wasteful number, since it uses less digits than its factorization.

1200684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100064 (or 100062 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1200684 is about 1095.7572723920. The cubic root of 1200684 is about 106.2860435961.

It can be divided in two parts, 12006 and 84, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 1200684 in words is "one million, two hundred thousand, six hundred eighty-four".