1286684 has 12 divisors (see below), whose sum is σ = 2573424. Its totient is φ = 551424.

The previous prime is 1286683. The next prime is 1286693. The reversal of 1286684 is 4866821.

1286684 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22949 + ... + 23004.

It is an arithmetic number, because the mean of its divisors is an integer number (214452).

2^1286684 is an apocalyptic number.

1286684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1286684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1286684 is a wasteful number, since it uses less digits than its factorization.

1286684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45964 (or 45962 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 1286684 is about 1134.3209422381. The cubic root of 1286684 is about 108.7653679783.

The spelling of 1286684 in words is "one million, two hundred eighty-six thousand, six hundred eighty-four".