1312984 has 16 divisors (see below), whose sum is σ = 2522520. Its totient is φ = 640320.

The previous prime is 1312967. The next prime is 1313041. The reversal of 1312984 is 4892131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674 + ... + 2329.

2^1312984 is an apocalyptic number.

It is an amenable number.

1312984 is a deficient number, since it is larger than the sum of its proper divisors (1209536).

1312984 is a wasteful number, since it uses less digits than its factorization.

1312984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050 (or 4046 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 1312984 is about 1145.8551391865. The cubic root of 1312984 is about 109.5014351751.

The spelling of 1312984 in words is "one million, three hundred twelve thousand, nine hundred eighty-four".