1287084 has 24 divisors (see below), whose sum is σ = 3021760. Its totient is φ = 426384.

The previous prime is 1287071. The next prime is 1287101. The reversal of 1287084 is 4807821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3207 + ... + 3585.

2^1287084 is an apocalyptic number.

It is an amenable number.

1287084 is an abundant number, since it is smaller than the sum of its proper divisors (1734676).

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

1287084 is a wasteful number, since it uses less digits than its factorization.

1287084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1287084 is about 1134.4972454792. The cubic root of 1287084 is about 108.7766376814.

The spelling of 1287084 in words is "one million, two hundred eighty-seven thousand, eighty-four".